├── TreeViewDemo
    ├── App.config
    ├── Properties
    │   ├── Settings.settings
    │   ├── Settings.Designer.cs
    │   ├── AssemblyInfo.cs
    │   ├── Resources.Designer.cs
    │   └── Resources.resx
    ├── App.xaml
    ├── App.xaml.cs
    ├── TreeItemViewModel.cs
    ├── MainWindow.xaml.cs
    ├── TreeViewDemo.csproj
    └── MainWindow.xaml
├── MultiSelectTreeView
    ├── Properties
    │   ├── Settings.settings
    │   ├── Settings.Designer.cs
    │   ├── AssemblyInfo.cs
    │   ├── Resources.Designer.cs
    │   └── Resources.resx
    ├── MultiSelectTreeView.csproj
    └── MultiSelectTreeView.cs
├── README.md
├── LICENSE.txt
└── MultiSelectTreeView.sln


/TreeViewDemo/App.config:
--------------------------------------------------------------------------------
1 | <?xml version="1.0" encoding="utf-8" ?>
2 | <configuration>
3 |     <startup> 
4 |         <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
5 |     </startup>
6 | </configuration>


--------------------------------------------------------------------------------
/TreeViewDemo/Properties/Settings.settings:
--------------------------------------------------------------------------------
1 | <?xml version='1.0' encoding='utf-8'?>
2 | <SettingsFile xmlns="uri:settings" CurrentProfile="(Default)">
3 |   <Profiles>
4 |     <Profile Name="(Default)" />
5 |   </Profiles>
6 |   <Settings />
7 | </SettingsFile>


--------------------------------------------------------------------------------
/MultiSelectTreeView/Properties/Settings.settings:
--------------------------------------------------------------------------------
1 | <?xml version='1.0' encoding='utf-8'?>
2 | <SettingsFile xmlns="uri:settings" CurrentProfile="(Default)">
3 |   <Profiles>
4 |     <Profile Name="(Default)" />
5 |   </Profiles>
6 |   <Settings />
7 | </SettingsFile>


--------------------------------------------------------------------------------
/TreeViewDemo/App.xaml:
--------------------------------------------------------------------------------
1 | <Application x:Class="TreeViewDemo.App"
2 |              xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
3 |              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
4 |              StartupUri="MainWindow.xaml">
5 |     <Application.Resources>
6 |          
7 |     </Application.Resources>
8 | </Application>
9 | 


--------------------------------------------------------------------------------
/TreeViewDemo/App.xaml.cs:
--------------------------------------------------------------------------------
 1 | using System;
 2 | using System.Collections.Generic;
 3 | using System.Configuration;
 4 | using System.Data;
 5 | using System.Linq;
 6 | using System.Threading.Tasks;
 7 | using System.Windows;
 8 | 
 9 | namespace TreeViewDemo
10 | {
11 |     /// <summary>
12 |     /// Interaction logic for App.xaml
13 |     /// </summary>
14 |     public partial class App : Application
15 |     {
16 |     }
17 | }
18 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | # MultiSelectTreeView
 2 | Inherits from standard WPF TreeView and adds functionality for selecting multiple TreeViewItems.
 3 | 
 4 | This control is based on the following blog post:
 5 | http://chrigas.blogspot.de/2014/08/wpf-treeview-with-multiple-selection.html
 6 | 
 7 | Thanks to Christoph Gattnar for providing the basics!
 8 | 
 9 | Differences in this control in regard to the blog post:
10 | * MultiSelectTreeView inherits WPF TreeView instead of attaching behavior
11 | * Support from keyboard selection in addition to mouse selection
12 | * Support for SHIFT + CTRL selection
13 | 
14 | For usage example, see the TreeViewDemo project.
15 | 


--------------------------------------------------------------------------------
/LICENSE.txt:
--------------------------------------------------------------------------------
 1 | The MIT License (MIT)
 2 | 
 3 | Copyright (c) 2015 Christian Myksvoll
 4 | 
 5 | Permission is hereby granted, free of charge, to any person obtaining a copy
 6 | of this software and associated documentation files (the "Software"), to deal
 7 | in the Software without restriction, including without limitation the rights
 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 9 | copies of the Software, and to permit persons to whom the Software is
10 | furnished to do so, subject to the following conditions:
11 | 
12 | The above copyright notice and this permission notice shall be included in all
13 | copies or substantial portions of the Software.
14 | 
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 | SOFTWARE.
22 | 


--------------------------------------------------------------------------------
/TreeViewDemo/Properties/Settings.Designer.cs:
--------------------------------------------------------------------------------
 1 | //------------------------------------------------------------------------------
 2 | // <auto-generated>
 3 | //     This code was generated by a tool.
 4 | //     Runtime Version:4.0.30319.34209
 5 | //
 6 | //     Changes to this file may cause incorrect behavior and will be lost if
 7 | //     the code is regenerated.
 8 | // </auto-generated>
 9 | //------------------------------------------------------------------------------
10 | 
11 | namespace TreeViewDemo.Properties
12 | {
13 | 
14 | 
15 |     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
16 |     [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "11.0.0.0")]
17 |     internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase
18 |     {
19 | 
20 |         private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));
21 | 
22 |         public static Settings Default
23 |         {
24 |             get
25 |             {
26 |                 return defaultInstance;
27 |             }
28 |         }
29 |     }
30 | }
31 | 


--------------------------------------------------------------------------------
/MultiSelectTreeView/Properties/Settings.Designer.cs:
--------------------------------------------------------------------------------
 1 | //------------------------------------------------------------------------------
 2 | // <auto-generated>
 3 | //     This code was generated by a tool.
 4 | //     Runtime Version:4.0.30319.34209
 5 | //
 6 | //     Changes to this file may cause incorrect behavior and will be lost if
 7 | //     the code is regenerated.
 8 | // </auto-generated>
 9 | //------------------------------------------------------------------------------
10 | 
11 | namespace MultiSelectTreeView.Properties
12 | {
13 |     
14 |     
15 |     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
16 |     [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "11.0.0.0")]
17 |     internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase
18 |     {
19 |         
20 |         private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));
21 |         
22 |         public static Settings Default
23 |         {
24 |             get
25 |             {
26 |                 return defaultInstance;
27 |             }
28 |         }
29 |     }
30 | }
31 | 


--------------------------------------------------------------------------------
/TreeViewDemo/TreeItemViewModel.cs:
--------------------------------------------------------------------------------
 1 | using System;
 2 | using System.Collections.Generic;
 3 | using System.ComponentModel;
 4 | using System.Linq.Expressions;
 5 | 
 6 | namespace TreeViewDemo
 7 | {
 8 |     public class TreeItemViewModel : INotifyPropertyChanged
 9 |     {
10 |         public TreeItemViewModel(string displayName)
11 |         {
12 |             DisplayName = displayName;
13 |         }
14 | 
15 |         private bool _isExpanded;
16 |         private bool _isSelected;
17 | 
18 |         public string DisplayName { get; set; }
19 | 
20 |         public bool IsExpanded
21 |         {
22 |             get { return _isExpanded; }
23 |             set
24 |             {
25 |                 _isExpanded = value;
26 |                 OnPropertyChanged(() => IsExpanded);
27 |             }
28 |         }
29 | 
30 |         public virtual bool IsSelected
31 |         {
32 |             get { return _isSelected; }
33 |             set
34 |             {
35 |                 _isSelected = value;
36 |                 OnPropertyChanged(() => IsSelected);
37 |             }
38 |         }
39 | 
40 |         public List<TreeItemViewModel> Children { get; set; }        
41 | 
42 |         public event PropertyChangedEventHandler PropertyChanged;
43 |         public void OnPropertyChanged<T>(Expression<Func<T>> propertyExpression)
44 |         {
45 |             var body = propertyExpression.Body as MemberExpression;
46 |             PropertyChangedEventHandler handler = PropertyChanged;
47 |             if (handler != null) handler(this, new PropertyChangedEventArgs(body.Member.Name));
48 |         }
49 |     }
50 | }


--------------------------------------------------------------------------------
/MultiSelectTreeView.sln:
--------------------------------------------------------------------------------
 1 | 
 2 | Microsoft Visual Studio Solution File, Format Version 12.00
 3 | # Visual Studio 2013
 4 | VisualStudioVersion = 12.0.31101.0
 5 | MinimumVisualStudioVersion = 10.0.40219.1
 6 | Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MultiSelectTreeView", "MultiSelectTreeView\MultiSelectTreeView.csproj", "{97B2220D-4A20-47ED-98B8-AED7C7188F2F}"
 7 | EndProject
 8 | Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TreeViewDemo", "TreeViewDemo\TreeViewDemo.csproj", "{FC629040-33D4-49F9-AD11-99566C62C112}"
 9 | EndProject
10 | Global
11 | 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
12 | 		Debug|Any CPU = Debug|Any CPU
13 | 		Release|Any CPU = Release|Any CPU
14 | 	EndGlobalSection
15 | 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
16 | 		{97B2220D-4A20-47ED-98B8-AED7C7188F2F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
17 | 		{97B2220D-4A20-47ED-98B8-AED7C7188F2F}.Debug|Any CPU.Build.0 = Debug|Any CPU
18 | 		{97B2220D-4A20-47ED-98B8-AED7C7188F2F}.Release|Any CPU.ActiveCfg = Release|Any CPU
19 | 		{97B2220D-4A20-47ED-98B8-AED7C7188F2F}.Release|Any CPU.Build.0 = Release|Any CPU
20 | 		{FC629040-33D4-49F9-AD11-99566C62C112}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
21 | 		{FC629040-33D4-49F9-AD11-99566C62C112}.Debug|Any CPU.Build.0 = Debug|Any CPU
22 | 		{FC629040-33D4-49F9-AD11-99566C62C112}.Release|Any CPU.ActiveCfg = Release|Any CPU
23 | 		{FC629040-33D4-49F9-AD11-99566C62C112}.Release|Any CPU.Build.0 = Release|Any CPU
24 | 	EndGlobalSection
25 | 	GlobalSection(SolutionProperties) = preSolution
26 | 		HideSolutionNode = FALSE
27 | 	EndGlobalSection
28 | EndGlobal
29 | 


--------------------------------------------------------------------------------
/TreeViewDemo/Properties/AssemblyInfo.cs:
--------------------------------------------------------------------------------
 1 | using System.Reflection;
 2 | using System.Resources;
 3 | using System.Runtime.CompilerServices;
 4 | using System.Runtime.InteropServices;
 5 | using System.Windows;
 6 | 
 7 | // General Information about an assembly is controlled through the following 
 8 | // set of attributes. Change these attribute values to modify the information
 9 | // associated with an assembly.
10 | [assembly: AssemblyTitle("TreeViewDemo")]
11 | [assembly: AssemblyDescription("")]
12 | [assembly: AssemblyConfiguration("")]
13 | [assembly: AssemblyCompany("")]
14 | [assembly: AssemblyProduct("TreeViewDemo")]
15 | [assembly: AssemblyCopyright("Copyright ©  2015")]
16 | [assembly: AssemblyTrademark("")]
17 | [assembly: AssemblyCulture("")]
18 | 
19 | // Setting ComVisible to false makes the types in this assembly not visible 
20 | // to COM components.  If you need to access a type in this assembly from 
21 | // COM, set the ComVisible attribute to true on that type.
22 | [assembly: ComVisible(false)]
23 | 
24 | //In order to begin building localizable applications, set 
25 | //<UICulture>CultureYouAreCodingWith</UICulture> in your .csproj file
26 | //inside a <PropertyGroup>.  For example, if you are using US english
27 | //in your source files, set the <UICulture> to en-US.  Then uncomment
28 | //the NeutralResourceLanguage attribute below.  Update the "en-US" in
29 | //the line below to match the UICulture setting in the project file.
30 | 
31 | //[assembly: NeutralResourcesLanguage("en-US", UltimateResourceFallbackLocation.Satellite)]
32 | 
33 | 
34 | [assembly: ThemeInfo(
35 |     ResourceDictionaryLocation.None, //where theme specific resource dictionaries are located
36 |     //(used if a resource is not found in the page, 
37 |     // or application resource dictionaries)
38 |     ResourceDictionaryLocation.SourceAssembly //where the generic resource dictionary is located
39 |     //(used if a resource is not found in the page, 
40 |     // app, or any theme specific resource dictionaries)
41 | )]
42 | 
43 | 
44 | // Version information for an assembly consists of the following four values:
45 | //
46 | //      Major Version
47 | //      Minor Version 
48 | //      Build Number
49 | //      Revision
50 | //
51 | // You can specify all the values or you can default the Build and Revision Numbers 
52 | // by using the '*' as shown below:
53 | // [assembly: AssemblyVersion("1.0.*")]
54 | [assembly: AssemblyVersion("1.0.0.0")]
55 | [assembly: AssemblyFileVersion("1.0.0.0")]
56 | 


--------------------------------------------------------------------------------
/MultiSelectTreeView/Properties/AssemblyInfo.cs:
--------------------------------------------------------------------------------
 1 | using System.Reflection;
 2 | using System.Resources;
 3 | using System.Runtime.CompilerServices;
 4 | using System.Runtime.InteropServices;
 5 | using System.Windows;
 6 | 
 7 | // General Information about an assembly is controlled through the following 
 8 | // set of attributes. Change these attribute values to modify the information
 9 | // associated with an assembly.
10 | [assembly: AssemblyTitle("MultiSelectTreeView")]
11 | [assembly: AssemblyDescription("")]
12 | [assembly: AssemblyConfiguration("")]
13 | [assembly: AssemblyCompany("")]
14 | [assembly: AssemblyProduct("MultiSelectTreeView")]
15 | [assembly: AssemblyCopyright("Copyright ©  2015")]
16 | [assembly: AssemblyTrademark("")]
17 | [assembly: AssemblyCulture("")]
18 | 
19 | // Setting ComVisible to false makes the types in this assembly not visible 
20 | // to COM components.  If you need to access a type in this assembly from 
21 | // COM, set the ComVisible attribute to true on that type.
22 | [assembly: ComVisible(false)]
23 | 
24 | //In order to begin building localizable applications, set 
25 | //<UICulture>CultureYouAreCodingWith</UICulture> in your .csproj file
26 | //inside a <PropertyGroup>.  For example, if you are using US english
27 | //in your source files, set the <UICulture> to en-US.  Then uncomment
28 | //the NeutralResourceLanguage attribute below.  Update the "en-US" in
29 | //the line below to match the UICulture setting in the project file.
30 | 
31 | //[assembly: NeutralResourcesLanguage("en-US", UltimateResourceFallbackLocation.Satellite)]
32 | 
33 | 
34 | [assembly:ThemeInfo(
35 |     ResourceDictionaryLocation.None, //where theme specific resource dictionaries are located
36 |                              //(used if a resource is not found in the page, 
37 |                              // or application resource dictionaries)
38 |     ResourceDictionaryLocation.SourceAssembly //where the generic resource dictionary is located
39 |                                       //(used if a resource is not found in the page, 
40 |                                       // app, or any theme specific resource dictionaries)
41 | )]
42 | 
43 | 
44 | // Version information for an assembly consists of the following four values:
45 | //
46 | //      Major Version
47 | //      Minor Version 
48 | //      Build Number
49 | //      Revision
50 | //
51 | // You can specify all the values or you can default the Build and Revision Numbers 
52 | // by using the '*' as shown below:
53 | // [assembly: AssemblyVersion("1.0.*")]
54 | [assembly: AssemblyVersion("1.0.0.0")]
55 | [assembly: AssemblyFileVersion("1.0.0.0")]
56 | 


--------------------------------------------------------------------------------
/TreeViewDemo/MainWindow.xaml.cs:
--------------------------------------------------------------------------------
 1 | using System.Collections.Generic;
 2 | using System.Collections.ObjectModel;
 3 | using System.Windows;
 4 | 
 5 | namespace TreeViewDemo
 6 | {
 7 |     public partial class MainWindow : Window
 8 |     {
 9 |         public MainWindow()
10 |         {
11 |             SelectedNodes = new ObservableCollection<TreeItemViewModel>();
12 |             SelectedNodes.CollectionChanged += SelectedNodes_CollectionChanged;
13 | 
14 |             RootNodes = BuildTreeModel();
15 | 
16 |             InitializeComponent();
17 |         }
18 | 
19 |         private static List<TreeItemViewModel> BuildTreeModel()
20 |         {
21 |             return new List<TreeItemViewModel>
22 |             {
23 |                 new TreeItemViewModel("Node 1")
24 |                 {
25 |                     IsExpanded = true,
26 |                     Children = new List<TreeItemViewModel>
27 |                     {
28 |                         new TreeItemViewModel("Node 1.1"),
29 |                         new TreeItemViewModel("Node 1.2")
30 |                         {
31 |                             Children = new List<TreeItemViewModel>
32 |                             {
33 |                                 new TreeItemViewModel("Node 1.2.1"),
34 |                                 new TreeItemViewModel("Node 1.2.2"),
35 |                                 new TreeItemViewModel("Node 1.2.3"),
36 |                                 new TreeItemViewModel("Node 1.2.4"),
37 |                                 new TreeItemViewModel("Node 1.2.5"),
38 |                                 new TreeItemViewModel("Node 1.2.6")
39 |                             }
40 |                         }
41 |                     }
42 |                 },
43 |                 new TreeItemViewModel("Node 2")
44 |                 {
45 |                     Children = new List<TreeItemViewModel>
46 |                     {
47 |                         new TreeItemViewModel("Node 2.2.1"),
48 |                         new TreeItemViewModel("Node 2.2.2"),
49 |                         new TreeItemViewModel("Node 2.2.3"),
50 |                         new TreeItemViewModel("Node 2.2.4")
51 |                     }
52 |                 }
53 |             };
54 |         }
55 | 
56 |         public List<TreeItemViewModel> RootNodes { get; set; }
57 | 
58 |         public ObservableCollection<TreeItemViewModel> SelectedNodes { get; set; }
59 | 
60 |         void SelectedNodes_CollectionChanged(object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
61 |         {
62 |             NumberOfSelectedNodes.Text = SelectedNodes.Count.ToString();
63 |         }
64 |     }
65 | }
66 | 


--------------------------------------------------------------------------------
/MultiSelectTreeView/Properties/Resources.Designer.cs:
--------------------------------------------------------------------------------
 1 | //------------------------------------------------------------------------------
 2 | // <auto-generated>
 3 | //     This code was generated by a tool.
 4 | //     Runtime Version:4.0.30319.34209
 5 | //
 6 | //     Changes to this file may cause incorrect behavior and will be lost if
 7 | //     the code is regenerated.
 8 | // </auto-generated>
 9 | //------------------------------------------------------------------------------
10 | 
11 | namespace MultiSelectTreeView.Properties {
12 |     
13 |     
14 |     /// <summary>
15 |     ///   A strongly-typed resource class, for looking up localized strings, etc.
16 |     /// </summary>
17 |     // This class was auto-generated by the StronglyTypedResourceBuilder
18 |     // class via a tool like ResGen or Visual Studio.
19 |     // To add or remove a member, edit your .ResX file then rerun ResGen
20 |     // with the /str option, or rebuild your VS project.
21 |     [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "4.0.0.0")]
22 |     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
23 |     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
24 |     internal class Resources {
25 |         
26 |         private static global::System.Resources.ResourceManager resourceMan;
27 |         
28 |         private static global::System.Globalization.CultureInfo resourceCulture;
29 |         
30 |         [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
31 |         internal Resources() {
32 |         }
33 |         
34 |         /// <summary>
35 |         ///   Returns the cached ResourceManager instance used by this class.
36 |         /// </summary>
37 |         [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
38 |         internal static global::System.Resources.ResourceManager ResourceManager {
39 |             get {
40 |                 if ((resourceMan == null)) {
41 |                     global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("MultiSelectTreeView.Properties.Resources", typeof(Resources).Assembly);
42 |                     resourceMan = temp;
43 |                 }
44 |                 return resourceMan;
45 |             }
46 |         }
47 |         
48 |         /// <summary>
49 |         ///   Overrides the current thread's CurrentUICulture property for all
50 |         ///   resource lookups using this strongly typed resource class.
51 |         /// </summary>
52 |         [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
53 |         internal static global::System.Globalization.CultureInfo Culture {
54 |             get {
55 |                 return resourceCulture;
56 |             }
57 |             set {
58 |                 resourceCulture = value;
59 |             }
60 |         }
61 |     }
62 | }
63 | 


--------------------------------------------------------------------------------
/TreeViewDemo/Properties/Resources.Designer.cs:
--------------------------------------------------------------------------------
 1 | //------------------------------------------------------------------------------
 2 | // <auto-generated>
 3 | //     This code was generated by a tool.
 4 | //     Runtime Version:4.0.30319.34209
 5 | //
 6 | //     Changes to this file may cause incorrect behavior and will be lost if
 7 | //     the code is regenerated.
 8 | // </auto-generated>
 9 | //------------------------------------------------------------------------------
10 | 
11 | namespace TreeViewDemo.Properties
12 | {
13 | 
14 | 
15 |     /// <summary>
16 |     ///   A strongly-typed resource class, for looking up localized strings, etc.
17 |     /// </summary>
18 |     // This class was auto-generated by the StronglyTypedResourceBuilder
19 |     // class via a tool like ResGen or Visual Studio.
20 |     // To add or remove a member, edit your .ResX file then rerun ResGen
21 |     // with the /str option, or rebuild your VS project.
22 |     [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "4.0.0.0")]
23 |     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
24 |     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
25 |     internal class Resources
26 |     {
27 | 
28 |         private static global::System.Resources.ResourceManager resourceMan;
29 | 
30 |         private static global::System.Globalization.CultureInfo resourceCulture;
31 | 
32 |         [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
33 |         internal Resources()
34 |         {
35 |         }
36 | 
37 |         /// <summary>
38 |         ///   Returns the cached ResourceManager instance used by this class.
39 |         /// </summary>
40 |         [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
41 |         internal static global::System.Resources.ResourceManager ResourceManager
42 |         {
43 |             get
44 |             {
45 |                 if ((resourceMan == null))
46 |                 {
47 |                     global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("TreeViewDemo.Properties.Resources", typeof(Resources).Assembly);
48 |                     resourceMan = temp;
49 |                 }
50 |                 return resourceMan;
51 |             }
52 |         }
53 | 
54 |         /// <summary>
55 |         ///   Overrides the current thread's CurrentUICulture property for all
56 |         ///   resource lookups using this strongly typed resource class.
57 |         /// </summary>
58 |         [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
59 |         internal static global::System.Globalization.CultureInfo Culture
60 |         {
61 |             get
62 |             {
63 |                 return resourceCulture;
64 |             }
65 |             set
66 |             {
67 |                 resourceCulture = value;
68 |             }
69 |         }
70 |     }
71 | }
72 | 


--------------------------------------------------------------------------------
/MultiSelectTreeView/MultiSelectTreeView.csproj:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
 3 |   <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
 4 |   <PropertyGroup>
 5 |     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
 6 |     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
 7 |     <ProjectGuid>{97B2220D-4A20-47ED-98B8-AED7C7188F2F}</ProjectGuid>
 8 |     <OutputType>library</OutputType>
 9 |     <AppDesignerFolder>Properties</AppDesignerFolder>
10 |     <RootNamespace>MultiSelectTreeView</RootNamespace>
11 |     <AssemblyName>MultiSelectTreeView</AssemblyName>
12 |     <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
13 |     <FileAlignment>512</FileAlignment>
14 |     <ProjectTypeGuids>{60dc8134-eba5-43b8-bcc9-bb4bc16c2548};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
15 |     <WarningLevel>4</WarningLevel>
16 |   </PropertyGroup>
17 |   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
18 |     <DebugSymbols>true</DebugSymbols>
19 |     <DebugType>full</DebugType>
20 |     <Optimize>false</Optimize>
21 |     <OutputPath>bin\Debug\</OutputPath>
22 |     <DefineConstants>DEBUG;TRACE</DefineConstants>
23 |     <ErrorReport>prompt</ErrorReport>
24 |     <WarningLevel>4</WarningLevel>
25 |   </PropertyGroup>
26 |   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
27 |     <DebugType>pdbonly</DebugType>
28 |     <Optimize>true</Optimize>
29 |     <OutputPath>bin\Release\</OutputPath>
30 |     <DefineConstants>TRACE</DefineConstants>
31 |     <ErrorReport>prompt</ErrorReport>
32 |     <WarningLevel>4</WarningLevel>
33 |   </PropertyGroup>
34 |   <ItemGroup>
35 |     <Reference Include="System" />
36 |     <Reference Include="System.Data" />
37 |     <Reference Include="System.Xml" />
38 |     <Reference Include="Microsoft.CSharp" />
39 |     <Reference Include="System.Core" />
40 |     <Reference Include="System.Xml.Linq" />
41 |     <Reference Include="System.Data.DataSetExtensions" />
42 |     <Reference Include="System.Xaml">
43 |       <RequiredTargetFramework>4.0</RequiredTargetFramework>
44 |     </Reference>
45 |     <Reference Include="WindowsBase" />
46 |     <Reference Include="PresentationCore" />
47 |     <Reference Include="PresentationFramework" />
48 |   </ItemGroup>
49 |   <ItemGroup>
50 |     <Compile Include="MultiSelectTreeView.cs" />
51 |     <Compile Include="Properties\AssemblyInfo.cs">
52 |       <SubType>Code</SubType>
53 |     </Compile>
54 |     <Compile Include="Properties\Resources.Designer.cs">
55 |       <AutoGen>True</AutoGen>
56 |       <DesignTime>True</DesignTime>
57 |       <DependentUpon>Resources.resx</DependentUpon>
58 |     </Compile>
59 |     <Compile Include="Properties\Settings.Designer.cs">
60 |       <AutoGen>True</AutoGen>
61 |       <DependentUpon>Settings.settings</DependentUpon>
62 |       <DesignTimeSharedInput>True</DesignTimeSharedInput>
63 |     </Compile>
64 |     <EmbeddedResource Include="Properties\Resources.resx">
65 |       <Generator>ResXFileCodeGenerator</Generator>
66 |       <LastGenOutput>Resources.Designer.cs</LastGenOutput>
67 |     </EmbeddedResource>
68 |     <None Include="Properties\Settings.settings">
69 |       <Generator>SettingsSingleFileGenerator</Generator>
70 |       <LastGenOutput>Settings.Designer.cs</LastGenOutput>
71 |     </None>
72 |     <AppDesigner Include="Properties\" />
73 |   </ItemGroup>
74 |   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
75 |   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
76 |        Other similar extension points exist, see Microsoft.Common.targets.
77 |   <Target Name="BeforeBuild">
78 |   </Target>
79 |   <Target Name="AfterBuild">
80 |   </Target>
81 |   -->
82 | </Project>


--------------------------------------------------------------------------------
/TreeViewDemo/TreeViewDemo.csproj:
--------------------------------------------------------------------------------
  1 | <?xml version="1.0" encoding="utf-8"?>
  2 | <Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  3 |   <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
  4 |   <PropertyGroup>
  5 |     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
  6 |     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
  7 |     <ProjectGuid>{FC629040-33D4-49F9-AD11-99566C62C112}</ProjectGuid>
  8 |     <OutputType>WinExe</OutputType>
  9 |     <AppDesignerFolder>Properties</AppDesignerFolder>
 10 |     <RootNamespace>TreeViewDemo</RootNamespace>
 11 |     <AssemblyName>TreeViewDemo</AssemblyName>
 12 |     <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
 13 |     <FileAlignment>512</FileAlignment>
 14 |     <ProjectTypeGuids>{60dc8134-eba5-43b8-bcc9-bb4bc16c2548};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
 15 |     <WarningLevel>4</WarningLevel>
 16 |   </PropertyGroup>
 17 |   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
 18 |     <PlatformTarget>AnyCPU</PlatformTarget>
 19 |     <DebugSymbols>true</DebugSymbols>
 20 |     <DebugType>full</DebugType>
 21 |     <Optimize>false</Optimize>
 22 |     <OutputPath>bin\Debug\</OutputPath>
 23 |     <DefineConstants>DEBUG;TRACE</DefineConstants>
 24 |     <ErrorReport>prompt</ErrorReport>
 25 |     <WarningLevel>4</WarningLevel>
 26 |   </PropertyGroup>
 27 |   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
 28 |     <PlatformTarget>AnyCPU</PlatformTarget>
 29 |     <DebugType>pdbonly</DebugType>
 30 |     <Optimize>true</Optimize>
 31 |     <OutputPath>bin\Release\</OutputPath>
 32 |     <DefineConstants>TRACE</DefineConstants>
 33 |     <ErrorReport>prompt</ErrorReport>
 34 |     <WarningLevel>4</WarningLevel>
 35 |   </PropertyGroup>
 36 |   <ItemGroup>
 37 |     <Reference Include="System" />
 38 |     <Reference Include="System.Data" />
 39 |     <Reference Include="System.Xml" />
 40 |     <Reference Include="Microsoft.CSharp" />
 41 |     <Reference Include="System.Core" />
 42 |     <Reference Include="System.Xml.Linq" />
 43 |     <Reference Include="System.Data.DataSetExtensions" />
 44 |     <Reference Include="System.Xaml">
 45 |       <RequiredTargetFramework>4.0</RequiredTargetFramework>
 46 |     </Reference>
 47 |     <Reference Include="WindowsBase" />
 48 |     <Reference Include="PresentationCore" />
 49 |     <Reference Include="PresentationFramework" />
 50 |   </ItemGroup>
 51 |   <ItemGroup>
 52 |     <ApplicationDefinition Include="App.xaml">
 53 |       <Generator>MSBuild:Compile</Generator>
 54 |       <SubType>Designer</SubType>
 55 |     </ApplicationDefinition>
 56 |     <Compile Include="TreeItemViewModel.cs" />
 57 |     <Page Include="MainWindow.xaml">
 58 |       <Generator>MSBuild:Compile</Generator>
 59 |       <SubType>Designer</SubType>
 60 |     </Page>
 61 |     <Compile Include="App.xaml.cs">
 62 |       <DependentUpon>App.xaml</DependentUpon>
 63 |       <SubType>Code</SubType>
 64 |     </Compile>
 65 |     <Compile Include="MainWindow.xaml.cs">
 66 |       <DependentUpon>MainWindow.xaml</DependentUpon>
 67 |       <SubType>Code</SubType>
 68 |     </Compile>
 69 |   </ItemGroup>
 70 |   <ItemGroup>
 71 |     <Compile Include="Properties\AssemblyInfo.cs">
 72 |       <SubType>Code</SubType>
 73 |     </Compile>
 74 |     <Compile Include="Properties\Resources.Designer.cs">
 75 |       <AutoGen>True</AutoGen>
 76 |       <DesignTime>True</DesignTime>
 77 |       <DependentUpon>Resources.resx</DependentUpon>
 78 |     </Compile>
 79 |     <Compile Include="Properties\Settings.Designer.cs">
 80 |       <AutoGen>True</AutoGen>
 81 |       <DependentUpon>Settings.settings</DependentUpon>
 82 |       <DesignTimeSharedInput>True</DesignTimeSharedInput>
 83 |     </Compile>
 84 |     <EmbeddedResource Include="Properties\Resources.resx">
 85 |       <Generator>ResXFileCodeGenerator</Generator>
 86 |       <LastGenOutput>Resources.Designer.cs</LastGenOutput>
 87 |     </EmbeddedResource>
 88 |     <None Include="Properties\Settings.settings">
 89 |       <Generator>SettingsSingleFileGenerator</Generator>
 90 |       <LastGenOutput>Settings.Designer.cs</LastGenOutput>
 91 |     </None>
 92 |     <AppDesigner Include="Properties\" />
 93 |   </ItemGroup>
 94 |   <ItemGroup>
 95 |     <None Include="App.config" />
 96 |   </ItemGroup>
 97 |   <ItemGroup>
 98 |     <ProjectReference Include="..\MultiSelectTreeView\MultiSelectTreeView.csproj">
 99 |       <Project>{97b2220d-4a20-47ed-98b8-aed7c7188f2f}</Project>
100 |       <Name>MultiSelectTreeView</Name>
101 |     </ProjectReference>
102 |   </ItemGroup>
103 |   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
104 |   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
105 |        Other similar extension points exist, see Microsoft.Common.targets.
106 |   <Target Name="BeforeBuild">
107 |   </Target>
108 |   <Target Name="AfterBuild">
109 |   </Target>
110 |   -->
111 | </Project>


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/TreeViewDemo/Properties/Resources.resx:
--------------------------------------------------------------------------------
  1 | <?xml version="1.0" encoding="utf-8"?>
  2 | <root>
  3 |   <!-- 
  4 |     Microsoft ResX Schema 
  5 |     
  6 |     Version 2.0
  7 |     
  8 |     The primary goals of this format is to allow a simple XML format 
  9 |     that is mostly human readable. The generation and parsing of the 
 10 |     various data types are done through the TypeConverter classes 
 11 |     associated with the data types.
 12 |     
 13 |     Example:
 14 |     
 15 |     ... ado.net/XML headers & schema ...
 16 |     <resheader name="resmimetype">text/microsoft-resx</resheader>
 17 |     <resheader name="version">2.0</resheader>
 18 |     <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
 19 |     <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
 20 |     <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
 21 |     <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
 22 |     <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
 23 |         <value>[base64 mime encoded serialized .NET Framework object]</value>
 24 |     </data>
 25 |     <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
 26 |         <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
 27 |         <comment>This is a comment</comment>
 28 |     </data>
 29 |                 
 30 |     There are any number of "resheader" rows that contain simple 
 31 |     name/value pairs.
 32 |     
 33 |     Each data row contains a name, and value. The row also contains a 
 34 |     type or mimetype. Type corresponds to a .NET class that support 
 35 |     text/value conversion through the TypeConverter architecture. 
 36 |     Classes that don't support this are serialized and stored with the 
 37 |     mimetype set.
 38 |     
 39 |     The mimetype is used for serialized objects, and tells the 
 40 |     ResXResourceReader how to depersist the object. This is currently not 
 41 |     extensible. For a given mimetype the value must be set accordingly:
 42 |     
 43 |     Note - application/x-microsoft.net.object.binary.base64 is the format 
 44 |     that the ResXResourceWriter will generate, however the reader can 
 45 |     read any of the formats listed below.
 46 |     
 47 |     mimetype: application/x-microsoft.net.object.binary.base64
 48 |     value   : The object must be serialized with 
 49 |             : System.Serialization.Formatters.Binary.BinaryFormatter
 50 |             : and then encoded with base64 encoding.
 51 |     
 52 |     mimetype: application/x-microsoft.net.object.soap.base64
 53 |     value   : The object must be serialized with 
 54 |             : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
 55 |             : and then encoded with base64 encoding.
 56 | 
 57 |     mimetype: application/x-microsoft.net.object.bytearray.base64
 58 |     value   : The object must be serialized into a byte array 
 59 |             : using a System.ComponentModel.TypeConverter
 60 |             : and then encoded with base64 encoding.
 61 |     -->
 62 |   <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
 63 |     <xsd:element name="root" msdata:IsDataSet="true">
 64 |       <xsd:complexType>
 65 |         <xsd:choice maxOccurs="unbounded">
 66 |           <xsd:element name="metadata">
 67 |             <xsd:complexType>
 68 |               <xsd:sequence>
 69 |                 <xsd:element name="value" type="xsd:string" minOccurs="0" />
 70 |               </xsd:sequence>
 71 |               <xsd:attribute name="name" type="xsd:string" />
 72 |               <xsd:attribute name="type" type="xsd:string" />
 73 |               <xsd:attribute name="mimetype" type="xsd:string" />
 74 |             </xsd:complexType>
 75 |           </xsd:element>
 76 |           <xsd:element name="assembly">
 77 |             <xsd:complexType>
 78 |               <xsd:attribute name="alias" type="xsd:string" />
 79 |               <xsd:attribute name="name" type="xsd:string" />
 80 |             </xsd:complexType>
 81 |           </xsd:element>
 82 |           <xsd:element name="data">
 83 |             <xsd:complexType>
 84 |               <xsd:sequence>
 85 |                 <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
 86 |                 <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
 87 |               </xsd:sequence>
 88 |               <xsd:attribute name="name" type="xsd:string" msdata:Ordinal="1" />
 89 |               <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
 90 |               <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
 91 |             </xsd:complexType>
 92 |           </xsd:element>
 93 |           <xsd:element name="resheader">
 94 |             <xsd:complexType>
 95 |               <xsd:sequence>
 96 |                 <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
 97 |               </xsd:sequence>
 98 |               <xsd:attribute name="name" type="xsd:string" use="required" />
 99 |             </xsd:complexType>
100 |           </xsd:element>
101 |         </xsd:choice>
102 |       </xsd:complexType>
103 |     </xsd:element>
104 |   </xsd:schema>
105 |   <resheader name="resmimetype">
106 |     <value>text/microsoft-resx</value>
107 |   </resheader>
108 |   <resheader name="version">
109 |     <value>2.0</value>
110 |   </resheader>
111 |   <resheader name="reader">
112 |     <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
113 |   </resheader>
114 |   <resheader name="writer">
115 |     <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
116 |   </resheader>
117 | </root>


--------------------------------------------------------------------------------
/MultiSelectTreeView/Properties/Resources.resx:
--------------------------------------------------------------------------------
  1 | <?xml version="1.0" encoding="utf-8"?>
  2 | <root>
  3 |   <!-- 
  4 |     Microsoft ResX Schema 
  5 |     
  6 |     Version 2.0
  7 |     
  8 |     The primary goals of this format is to allow a simple XML format 
  9 |     that is mostly human readable. The generation and parsing of the 
 10 |     various data types are done through the TypeConverter classes 
 11 |     associated with the data types.
 12 |     
 13 |     Example:
 14 |     
 15 |     ... ado.net/XML headers & schema ...
 16 |     <resheader name="resmimetype">text/microsoft-resx</resheader>
 17 |     <resheader name="version">2.0</resheader>
 18 |     <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
 19 |     <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
 20 |     <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
 21 |     <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
 22 |     <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
 23 |         <value>[base64 mime encoded serialized .NET Framework object]</value>
 24 |     </data>
 25 |     <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
 26 |         <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
 27 |         <comment>This is a comment</comment>
 28 |     </data>
 29 |                 
 30 |     There are any number of "resheader" rows that contain simple 
 31 |     name/value pairs.
 32 |     
 33 |     Each data row contains a name, and value. The row also contains a 
 34 |     type or mimetype. Type corresponds to a .NET class that support 
 35 |     text/value conversion through the TypeConverter architecture. 
 36 |     Classes that don't support this are serialized and stored with the 
 37 |     mimetype set.
 38 |     
 39 |     The mimetype is used for serialized objects, and tells the 
 40 |     ResXResourceReader how to depersist the object. This is currently not 
 41 |     extensible. For a given mimetype the value must be set accordingly:
 42 |     
 43 |     Note - application/x-microsoft.net.object.binary.base64 is the format 
 44 |     that the ResXResourceWriter will generate, however the reader can 
 45 |     read any of the formats listed below.
 46 |     
 47 |     mimetype: application/x-microsoft.net.object.binary.base64
 48 |     value   : The object must be serialized with 
 49 |             : System.Serialization.Formatters.Binary.BinaryFormatter
 50 |             : and then encoded with base64 encoding.
 51 |     
 52 |     mimetype: application/x-microsoft.net.object.soap.base64
 53 |     value   : The object must be serialized with 
 54 |             : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
 55 |             : and then encoded with base64 encoding.
 56 | 
 57 |     mimetype: application/x-microsoft.net.object.bytearray.base64
 58 |     value   : The object must be serialized into a byte array 
 59 |             : using a System.ComponentModel.TypeConverter
 60 |             : and then encoded with base64 encoding.
 61 |     -->
 62 |   <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
 63 |     <xsd:element name="root" msdata:IsDataSet="true">
 64 |       <xsd:complexType>
 65 |         <xsd:choice maxOccurs="unbounded">
 66 |           <xsd:element name="metadata">
 67 |             <xsd:complexType>
 68 |               <xsd:sequence>
 69 |                 <xsd:element name="value" type="xsd:string" minOccurs="0" />
 70 |               </xsd:sequence>
 71 |               <xsd:attribute name="name" type="xsd:string" />
 72 |               <xsd:attribute name="type" type="xsd:string" />
 73 |               <xsd:attribute name="mimetype" type="xsd:string" />
 74 |             </xsd:complexType>
 75 |           </xsd:element>
 76 |           <xsd:element name="assembly">
 77 |             <xsd:complexType>
 78 |               <xsd:attribute name="alias" type="xsd:string" />
 79 |               <xsd:attribute name="name" type="xsd:string" />
 80 |             </xsd:complexType>
 81 |           </xsd:element>
 82 |           <xsd:element name="data">
 83 |             <xsd:complexType>
 84 |               <xsd:sequence>
 85 |                 <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
 86 |                 <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
 87 |               </xsd:sequence>
 88 |               <xsd:attribute name="name" type="xsd:string" msdata:Ordinal="1" />
 89 |               <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
 90 |               <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
 91 |             </xsd:complexType>
 92 |           </xsd:element>
 93 |           <xsd:element name="resheader">
 94 |             <xsd:complexType>
 95 |               <xsd:sequence>
 96 |                 <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
 97 |               </xsd:sequence>
 98 |               <xsd:attribute name="name" type="xsd:string" use="required" />
 99 |             </xsd:complexType>
100 |           </xsd:element>
101 |         </xsd:choice>
102 |       </xsd:complexType>
103 |     </xsd:element>
104 |   </xsd:schema>
105 |   <resheader name="resmimetype">
106 |     <value>text/microsoft-resx</value>
107 |   </resheader>
108 |   <resheader name="version">
109 |     <value>2.0</value>
110 |   </resheader>
111 |   <resheader name="reader">
112 |     <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
113 |   </resheader>
114 |   <resheader name="writer">
115 |     <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
116 |   </resheader>
117 | </root>


--------------------------------------------------------------------------------
/TreeViewDemo/MainWindow.xaml:
--------------------------------------------------------------------------------
  1 | <Window x:Class="TreeViewDemo.MainWindow"
  2 |         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  3 |         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  4 |         xmlns:mstv="clr-namespace:MultiSelectTreeView;assembly=MultiSelectTreeView"
  5 |         xmlns:treeViewDemo="clr-namespace:TreeViewDemo"
  6 |         Title="MainWindow" Height="350" Width="525"
  7 |         x:Name="Window" DataContext="{Binding ElementName=Window}">
  8 | 
  9 |     <Window.Resources>
 10 | 
 11 |         <Style x:Key="TreeViewItemFocusVisual">
 12 |             <Setter Property="Control.Template">
 13 |                 <Setter.Value>
 14 |                     <ControlTemplate>
 15 |                         <Rectangle/>
 16 |                     </ControlTemplate>
 17 |                 </Setter.Value>
 18 |             </Setter>
 19 |         </Style>
 20 |         <SolidColorBrush x:Key="TreeViewItem.TreeArrow.Static.Checked.Fill" Color="#FF595959"/>
 21 |         <SolidColorBrush x:Key="TreeViewItem.TreeArrow.Static.Checked.Stroke" Color="#FF262626"/>
 22 |         <SolidColorBrush x:Key="TreeViewItem.TreeArrow.MouseOver.Stroke" Color="#FF27C7F7"/>
 23 |         <SolidColorBrush x:Key="TreeViewItem.TreeArrow.MouseOver.Fill" Color="#FFCCEEFB"/>
 24 |         <SolidColorBrush x:Key="TreeViewItem.TreeArrow.MouseOver.Checked.Stroke" Color="#FF1CC4F7"/>
 25 |         <SolidColorBrush x:Key="TreeViewItem.TreeArrow.MouseOver.Checked.Fill" Color="#FF82DFFB"/>
 26 |         <PathGeometry x:Key="TreeArrow" Figures="M0,0 L0,6 L6,0 z"/>
 27 |         <SolidColorBrush x:Key="TreeViewItem.TreeArrow.Static.Fill" Color="#FFFFFFFF"/>
 28 |         <SolidColorBrush x:Key="TreeViewItem.TreeArrow.Static.Stroke" Color="#FF818181"/>
 29 |         <Style x:Key="ExpandCollapseToggleStyle" TargetType="{x:Type ToggleButton}">
 30 |             <Setter Property="Focusable" Value="False"/>
 31 |             <Setter Property="Width" Value="16"/>
 32 |             <Setter Property="Height" Value="16"/>
 33 |             <Setter Property="Template">
 34 |                 <Setter.Value>
 35 |                     <ControlTemplate TargetType="{x:Type ToggleButton}">
 36 |                         <Border Background="Transparent" Height="16" Padding="5,5,5,5" Width="16">
 37 |                             <Path x:Name="ExpandPath" Data="{StaticResource TreeArrow}" Fill="{StaticResource TreeViewItem.TreeArrow.Static.Fill}" Stroke="{StaticResource TreeViewItem.TreeArrow.Static.Stroke}">
 38 |                                 <Path.RenderTransform>
 39 |                                     <RotateTransform Angle="135" CenterY="3" CenterX="3"/>
 40 |                                 </Path.RenderTransform>
 41 |                             </Path>
 42 |                         </Border>
 43 |                         <ControlTemplate.Triggers>
 44 |                             <Trigger Property="IsChecked" Value="True">
 45 |                                 <Setter Property="RenderTransform" TargetName="ExpandPath">
 46 |                                     <Setter.Value>
 47 |                                         <RotateTransform Angle="180" CenterY="3" CenterX="3"/>
 48 |                                     </Setter.Value>
 49 |                                 </Setter>
 50 |                                 <Setter Property="Fill" TargetName="ExpandPath" Value="{StaticResource TreeViewItem.TreeArrow.Static.Checked.Fill}"/>
 51 |                                 <Setter Property="Stroke" TargetName="ExpandPath" Value="{StaticResource TreeViewItem.TreeArrow.Static.Checked.Stroke}"/>
 52 |                             </Trigger>
 53 |                             <Trigger Property="IsMouseOver" Value="True">
 54 |                                 <Setter Property="Stroke" TargetName="ExpandPath" Value="{StaticResource TreeViewItem.TreeArrow.MouseOver.Stroke}"/>
 55 |                                 <Setter Property="Fill" TargetName="ExpandPath" Value="{StaticResource TreeViewItem.TreeArrow.MouseOver.Fill}"/>
 56 |                             </Trigger>
 57 |                             <MultiTrigger>
 58 |                                 <MultiTrigger.Conditions>
 59 |                                     <Condition Property="IsMouseOver" Value="True"/>
 60 |                                     <Condition Property="IsChecked" Value="True"/>
 61 |                                 </MultiTrigger.Conditions>
 62 |                                 <Setter Property="Stroke" TargetName="ExpandPath" Value="{StaticResource TreeViewItem.TreeArrow.MouseOver.Checked.Stroke}"/>
 63 |                                 <Setter Property="Fill" TargetName="ExpandPath" Value="{StaticResource TreeViewItem.TreeArrow.MouseOver.Checked.Fill}"/>
 64 |                             </MultiTrigger>
 65 |                         </ControlTemplate.Triggers>
 66 |                     </ControlTemplate>
 67 |                 </Setter.Value>
 68 |             </Setter>
 69 |         </Style>
 70 |         <Style TargetType="{x:Type TreeViewItem}" x:Key="MyTreeViewItemStyle">
 71 |             <Setter Property="Background" Value="Transparent"/>
 72 |             <Setter Property="HorizontalContentAlignment" Value="{Binding HorizontalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"/>
 73 |             <Setter Property="VerticalContentAlignment" Value="{Binding VerticalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"/>
 74 |             <Setter Property="Padding" Value="1,0,0,0"/>
 75 |             <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>
 76 |             <Setter Property="FocusVisualStyle" Value="{StaticResource TreeViewItemFocusVisual}"/>
 77 |             <Setter Property="Template">
 78 |                 <Setter.Value>
 79 |                     <ControlTemplate TargetType="{x:Type TreeViewItem}">
 80 |                         <Grid>
 81 |                             <Grid.ColumnDefinitions>
 82 |                                 <ColumnDefinition MinWidth="19" Width="Auto"/>
 83 |                                 <ColumnDefinition Width="Auto"/>
 84 |                                 <ColumnDefinition Width="*"/>
 85 |                             </Grid.ColumnDefinitions>
 86 |                             <Grid.RowDefinitions>
 87 |                                 <RowDefinition Height="Auto"/>
 88 |                                 <RowDefinition/>
 89 |                             </Grid.RowDefinitions>
 90 |                             <ToggleButton x:Name="Expander" ClickMode="Press" IsChecked="{Binding IsExpanded, RelativeSource={RelativeSource TemplatedParent}}" Style="{StaticResource ExpandCollapseToggleStyle}"/>
 91 |                             <Border x:Name="Bd" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Grid.Column="1" Padding="{TemplateBinding Padding}" SnapsToDevicePixels="true">
 92 |                                 <ContentPresenter x:Name="PART_Header" ContentSource="Header" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
 93 |                             </Border>
 94 |                             <ItemsPresenter x:Name="ItemsHost" Grid.ColumnSpan="2" Grid.Column="1" Grid.Row="1"/>
 95 |                         </Grid>
 96 |                         <ControlTemplate.Triggers>
 97 |                             <Trigger Property="IsExpanded" Value="false">
 98 |                                 <Setter Property="Visibility" TargetName="ItemsHost" Value="Collapsed"/>
 99 |                             </Trigger>
100 |                             <Trigger Property="HasItems" Value="false">
101 |                                 <Setter Property="Visibility" TargetName="Expander" Value="Hidden"/>
102 |                             </Trigger>
103 |                             <!--<Trigger Property="IsSelected" Value="true">
104 |                                 <Setter Property="Background" TargetName="Bd" Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}"/>
105 |                                 <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.HighlightTextBrushKey}}"/>
106 |                             </Trigger>
107 |                             <MultiTrigger>
108 |                                 <MultiTrigger.Conditions>
109 |                                     <Condition Property="IsSelected" Value="true"/>
110 |                                     <Condition Property="IsSelectionActive" Value="false"/>
111 |                                 </MultiTrigger.Conditions>
112 |                                 <Setter Property="Background" TargetName="Bd" Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}"/>
113 |                                 <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.HighlightTextBrushKey}}"/>
114 |                             </MultiTrigger>-->
115 |                             <Trigger Property="IsEnabled" Value="false">
116 |                                 <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>
117 |                             </Trigger>
118 |                         </ControlTemplate.Triggers>
119 |                     </ControlTemplate>
120 |                 </Setter.Value>
121 |             </Setter>
122 |             <Style.Triggers>
123 |                 <Trigger Property="VirtualizingStackPanel.IsVirtualizing" Value="true">
124 |                     <Setter Property="ItemsPanel">
125 |                         <Setter.Value>
126 |                             <ItemsPanelTemplate>
127 |                                 <VirtualizingStackPanel/>
128 |                             </ItemsPanelTemplate>
129 |                         </Setter.Value>
130 |                     </Setter>
131 |                 </Trigger>
132 |             </Style.Triggers>
133 |         </Style>
134 | 
135 | 
136 |         <HierarchicalDataTemplate DataType="{x:Type treeViewDemo:TreeItemViewModel}" ItemsSource="{Binding Children}">
137 |             <TextBlock Text="{Binding DisplayName}" TextTrimming="CharacterEllipsis" />
138 |         </HierarchicalDataTemplate>
139 | 
140 |     </Window.Resources>
141 |     
142 |     <DockPanel>
143 |         <TextBlock DockPanel.Dock="Top" Margin="5">
144 |             <Run># of selected nodes:</Run>
145 |             <Run x:Name="NumberOfSelectedNodes" />
146 |         </TextBlock>
147 | 
148 |         <mstv:MultiSelectTreeView ItemsSource="{Binding RootNodes}" SelectedItems="{Binding SelectedNodes}">
149 | 
150 |             <TreeView.ItemContainerStyle>
151 |                 <Style TargetType="{x:Type TreeViewItem}" BasedOn="{StaticResource MyTreeViewItemStyle}">
152 |                     <Setter Property="IsExpanded" Value="{Binding IsExpanded, Mode=TwoWay}" />
153 |                     <Setter Property="mstv:MultiSelectTreeView.IsItemSelected" Value="{Binding IsSelected, Mode=TwoWay}" />
154 |                     <Style.Triggers>
155 |                         <Trigger Property="mstv:MultiSelectTreeView.IsItemSelected" Value="True">
156 |                             <Setter Property="Background" Value="SkyBlue" />
157 |                         </Trigger>
158 |                     </Style.Triggers>
159 |                 </Style>
160 |             </TreeView.ItemContainerStyle>
161 | 
162 |         </mstv:MultiSelectTreeView>
163 |     </DockPanel>
164 |     
165 |     
166 |         
167 | </Window>
168 | 


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/MultiSelectTreeView/MultiSelectTreeView.cs:
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  1 | using System;
  2 | using System.Collections;
  3 | using System.Collections.Generic;
  4 | using System.Windows;
  5 | using System.Windows.Controls;
  6 | using System.Windows.Input;
  7 | using System.Windows.Media;
  8 | using System.Windows.Media.Media3D;
  9 | 
 10 | namespace MultiSelectTreeView
 11 | {
 12 |     public class MultiSelectTreeView : TreeView
 13 |     {
 14 |         public MultiSelectTreeView()
 15 |         {
 16 |             GotFocus += OnTreeViewItemGotFocus;
 17 |             PreviewMouseLeftButtonDown += OnTreeViewItemPreviewMouseDown;
 18 |             PreviewMouseLeftButtonUp += OnTreeViewItemPreviewMouseUp;
 19 |         }
 20 | 
 21 |         private static TreeViewItem _selectTreeViewItemOnMouseUp;
 22 | 
 23 | 
 24 |         public static readonly DependencyProperty IsItemSelectedProperty = DependencyProperty.RegisterAttached("IsItemSelected", typeof(Boolean), typeof(MultiSelectTreeView), new PropertyMetadata(false, OnIsItemSelectedPropertyChanged));
 25 | 
 26 |         public static bool GetIsItemSelected(TreeViewItem element)
 27 |         {
 28 |             return (bool)element.GetValue(IsItemSelectedProperty);
 29 |         }
 30 | 
 31 |         public static void SetIsItemSelected(TreeViewItem element, Boolean value)
 32 |         {
 33 |             if (element == null) return;
 34 | 
 35 |             element.SetValue(IsItemSelectedProperty, value);
 36 |         }
 37 | 
 38 |         private static void OnIsItemSelectedPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
 39 |         {
 40 |             var treeViewItem = d as TreeViewItem;
 41 |             var treeView = FindTreeView(treeViewItem);
 42 |             if (treeViewItem != null && treeView != null)
 43 |             {
 44 |                 var selectedItems = GetSelectedItems(treeView);
 45 |                 if (selectedItems != null)
 46 |                 {
 47 |                     if (GetIsItemSelected(treeViewItem))
 48 |                     {
 49 |                         selectedItems.Add(treeViewItem.Header);
 50 |                     }
 51 |                     else
 52 |                     {
 53 |                         selectedItems.Remove(treeViewItem.Header);
 54 |                     }
 55 |                 }
 56 |             }
 57 |         }
 58 | 
 59 |         public static readonly DependencyProperty SelectedItemsProperty = DependencyProperty.RegisterAttached("SelectedItems", typeof(IList), typeof(MultiSelectTreeView));
 60 | 
 61 |         public static IList GetSelectedItems(TreeView element)
 62 |         {
 63 |             return (IList)element.GetValue(SelectedItemsProperty);
 64 |         }
 65 | 
 66 |         public static void SetSelectedItems(TreeView element, IList value)
 67 |         {
 68 |             element.SetValue(SelectedItemsProperty, value);
 69 |         }
 70 | 
 71 |         private static readonly DependencyProperty StartItemProperty = DependencyProperty.RegisterAttached("StartItem", typeof(TreeViewItem), typeof(MultiSelectTreeView));
 72 | 
 73 | 
 74 |         private static TreeViewItem GetStartItem(TreeView element)
 75 |         {
 76 |             return (TreeViewItem)element.GetValue(StartItemProperty);
 77 |         }
 78 | 
 79 |         private static void SetStartItem(TreeView element, TreeViewItem value)
 80 |         {
 81 |             element.SetValue(StartItemProperty, value);
 82 |         }
 83 | 
 84 | 
 85 |         private static void OnTreeViewItemGotFocus(object sender, RoutedEventArgs e)
 86 |         {
 87 |             _selectTreeViewItemOnMouseUp = null;
 88 | 
 89 |             if (e.OriginalSource is TreeView) return;
 90 | 
 91 |             var treeViewItem = FindTreeViewItem(e.OriginalSource as DependencyObject);
 92 |             if (Mouse.LeftButton == MouseButtonState.Pressed && GetIsItemSelected(treeViewItem) && Keyboard.Modifiers != ModifierKeys.Control)
 93 |             {
 94 |                 _selectTreeViewItemOnMouseUp = treeViewItem;
 95 |                 return;
 96 |             }
 97 | 
 98 |             SelectItems(treeViewItem, sender as TreeView);
 99 |         }
100 | 
101 |         private static void SelectItems(TreeViewItem treeViewItem, TreeView treeView)
102 |         {
103 |             if (treeViewItem != null && treeView != null)
104 |             {
105 |                 if ((Keyboard.Modifiers & (ModifierKeys.Control | ModifierKeys.Shift)) == (ModifierKeys.Control | ModifierKeys.Shift))
106 |                 {
107 |                     SelectMultipleItemsContinuously(treeView, treeViewItem, true);
108 |                 }
109 |                 else if (Keyboard.Modifiers == ModifierKeys.Control)
110 |                 {
111 |                     SelectMultipleItemsRandomly(treeView, treeViewItem);
112 |                 }
113 |                 else if (Keyboard.Modifiers == ModifierKeys.Shift)
114 |                 {
115 |                     SelectMultipleItemsContinuously(treeView, treeViewItem);
116 |                 }
117 |                 else
118 |                 {
119 |                     SelectSingleItem(treeView, treeViewItem);
120 |                 }
121 |             }
122 |         }
123 | 
124 |         private static void OnTreeViewItemPreviewMouseDown(object sender, MouseEventArgs e)
125 |         {
126 |             var treeViewItem = FindTreeViewItem(e.OriginalSource as DependencyObject);
127 | 
128 |             if (treeViewItem != null && treeViewItem.IsFocused)
129 |                 OnTreeViewItemGotFocus(sender, e);
130 |         }
131 | 
132 |         private static void OnTreeViewItemPreviewMouseUp(object sender, MouseButtonEventArgs e)
133 |         {
134 |             var treeViewItem = FindTreeViewItem(e.OriginalSource as DependencyObject);
135 | 
136 |             if (treeViewItem == _selectTreeViewItemOnMouseUp)
137 |             {
138 |                 SelectItems(treeViewItem, sender as TreeView);
139 |             }
140 |         }
141 | 
142 |         private static TreeViewItem FindTreeViewItem(DependencyObject dependencyObject)
143 |         {
144 |             if (!(dependencyObject is Visual || dependencyObject is Visual3D))
145 |                 return null;
146 | 
147 |             var treeViewItem = dependencyObject as TreeViewItem;
148 |             if (treeViewItem != null)
149 |             {
150 |                 return treeViewItem;
151 |             }
152 | 
153 |             return FindTreeViewItem(VisualTreeHelper.GetParent(dependencyObject));
154 |         }
155 | 
156 |         private static void SelectSingleItem(TreeView treeView, TreeViewItem treeViewItem)
157 |         {
158 |             // first deselect all items
159 |             DeSelectAllItems(treeView, null);
160 |             SetIsItemSelected(treeViewItem, true);
161 |             SetStartItem(treeView, treeViewItem);
162 |         }
163 | 
164 |         private static void DeSelectAllItems(TreeView treeView, TreeViewItem treeViewItem)
165 |         {
166 |             if (treeView != null)
167 |             {
168 |                 for (int i = 0; i < treeView.Items.Count; i++)
169 |                 {
170 |                     var item = treeView.ItemContainerGenerator.ContainerFromIndex(i) as TreeViewItem;
171 |                     if (item != null)
172 |                     {
173 |                         SetIsItemSelected(item, false);
174 |                         DeSelectAllItems(null, item);
175 |                     }
176 |                 }
177 |             }
178 |             else
179 |             {
180 |                 for (int i = 0; i < treeViewItem.Items.Count; i++)
181 |                 {
182 |                     var item = treeViewItem.ItemContainerGenerator.ContainerFromIndex(i) as TreeViewItem;
183 |                     if (item != null)
184 |                     {
185 |                         SetIsItemSelected(item, false);
186 |                         DeSelectAllItems(null, item);
187 |                     }
188 |                 }
189 |             }
190 |         }
191 | 
192 |         private static TreeView FindTreeView(DependencyObject dependencyObject)
193 |         {
194 |             if (dependencyObject == null)
195 |             {
196 |                 return null;
197 |             }
198 | 
199 |             var treeView = dependencyObject as TreeView;
200 | 
201 |             return treeView ?? FindTreeView(VisualTreeHelper.GetParent(dependencyObject));
202 |         }
203 | 
204 |         private static void SelectMultipleItemsRandomly(TreeView treeView, TreeViewItem treeViewItem)
205 |         {
206 |             SetIsItemSelected(treeViewItem, !GetIsItemSelected(treeViewItem));
207 |             if (GetStartItem(treeView) == null || Keyboard.Modifiers == ModifierKeys.Control)
208 |             {
209 |                 if (GetIsItemSelected(treeViewItem))
210 |                 {
211 |                     SetStartItem(treeView, treeViewItem);
212 |                 }
213 |             }
214 |             else
215 |             {
216 |                 if (GetSelectedItems(treeView).Count == 0)
217 |                 {
218 |                     SetStartItem(treeView, null);
219 |                 }
220 |             }
221 |         }
222 | 
223 |         private static void SelectMultipleItemsContinuously(TreeView treeView, TreeViewItem treeViewItem, bool shiftControl = false)
224 |         {
225 |             TreeViewItem startItem = GetStartItem(treeView);
226 |             if (startItem != null)
227 |             {
228 |                 if (startItem == treeViewItem)
229 |                 {
230 |                     SelectSingleItem(treeView, treeViewItem);
231 |                     return;
232 |                 }
233 | 
234 |                 ICollection<TreeViewItem> allItems = new List<TreeViewItem>();
235 |                 GetAllItems(treeView, null, allItems);
236 |                 //DeSelectAllItems(treeView, null);
237 |                 bool isBetween = false;
238 |                 foreach (var item in allItems)
239 |                 {
240 |                     if (item == treeViewItem || item == startItem)
241 |                     {
242 |                         // toggle to true if first element is found and
243 |                         // back to false if last element is found
244 |                         isBetween = !isBetween;
245 | 
246 |                         // set boundary element
247 |                         SetIsItemSelected(item, true);
248 |                         continue;
249 |                     }
250 | 
251 |                     if (isBetween)
252 |                     {
253 |                         SetIsItemSelected(item, true);
254 |                         continue;
255 |                     }
256 | 
257 |                     if (!shiftControl)
258 |                         SetIsItemSelected(item, false);
259 |                 }
260 |             }
261 |         }
262 | 
263 |         private static void GetAllItems(TreeView treeView, TreeViewItem treeViewItem, ICollection<TreeViewItem> allItems)
264 |         {
265 |             if (treeView != null)
266 |             {
267 |                 for (int i = 0; i < treeView.Items.Count; i++)
268 |                 {
269 |                     var item = treeView.ItemContainerGenerator.ContainerFromIndex(i) as TreeViewItem;
270 |                     if (item != null)
271 |                     {
272 |                         allItems.Add(item);
273 |                         GetAllItems(null, item, allItems);
274 |                     }
275 |                 }
276 |             }
277 |             else
278 |             {
279 |                 for (int i = 0; i < treeViewItem.Items.Count; i++)
280 |                 {
281 |                     var item = treeViewItem.ItemContainerGenerator.ContainerFromIndex(i) as TreeViewItem;
282 |                     if (item != null)
283 |                     {
284 |                         allItems.Add(item);
285 |                         GetAllItems(null, item, allItems);
286 |                     }
287 |                 }
288 |             }
289 |         }
290 |     }
291 | }
292 | 


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