├── App.xaml
├── App.xaml.cs
├── Fonts
    ├── BarlowCondensed-Regular.ttf
    └── Roboto-Regular.ttf
├── Images
    ├── closed.png
    ├── open.png
    ├── shutdown_def.png
    └── shutdown_mo.png
├── LICENSE
├── MainWindow.xaml
├── MainWindow.xaml.cs
├── README.md
├── Services
    ├── IWindowService.cs
    └── WindowService.cs
├── Source Code
    └── MVVM Window App.rar
├── Utilities
    └── RelayCommand.cs
├── View
    ├── NewWindow.xaml
    └── NewWindow.xaml.cs
└── ViewModel
    └── MainViewModel.cs


/App.xaml:
--------------------------------------------------------------------------------
  1 | <Application x:Class="MVVM_Window_App.App"
  2 |              xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  3 |              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  4 |              xmlns:local="clr-namespace:MVVM_Window_App"
  5 |              StartupUri="MainWindow.xaml">
  6 |     
  7 |     <Application.Resources>
  8 | 
  9 |         <ImageBrush x:Key="def"
 10 |                     ImageSource="Images/closed.png"
 11 |                     Stretch="Uniform" />
 12 | 
 13 |         <ImageBrush x:Key="mo"
 14 |                     ImageSource="Images/open.png"
 15 |                     Stretch="Uniform" />
 16 | 
 17 |         <Style x:Key="BtnStyle1"
 18 |                TargetType="{x:Type Button}">
 19 | 
 20 |             <Setter Property="Height"
 21 |                     Value="180" />
 22 |             <Setter Property="Width"
 23 |                     Value="160" />
 24 |             <Setter Property="HorizontalAlignment"
 25 |                     Value="Center" />
 26 |             <Setter Property="VerticalAlignment"
 27 |                     Value="Center" />
 28 |             <Setter Property="Margin"
 29 |                     Value="0,0,0,25" />
 30 | 
 31 |             <Setter Property="Template">
 32 | 
 33 |                 <Setter.Value>
 34 | 
 35 |                     <ControlTemplate TargetType="{x:Type Button}">
 36 | 
 37 |                         <Border x:Name="border"
 38 |                                 BorderThickness="0"
 39 |                                 Background="{StaticResource def}" />
 40 | 
 41 |                         <ControlTemplate.Triggers>
 42 | 
 43 |                             <Trigger Property="IsMouseOver"
 44 |                                      Value="True">
 45 | 
 46 |                                 <Setter Property="Background"
 47 |                                         TargetName="border"
 48 |                                         Value="{StaticResource mo}" />
 49 | 
 50 |                             </Trigger>
 51 | 
 52 |                             <Trigger Property="IsPressed"
 53 |                                      Value="True">
 54 | 
 55 |                                 <Setter Property="Background"
 56 |                                         TargetName="border"
 57 |                                         Value="{StaticResource mo}" />
 58 | 
 59 |                             </Trigger>
 60 | 
 61 |                         </ControlTemplate.Triggers>
 62 | 
 63 |                     </ControlTemplate>
 64 | 
 65 |                 </Setter.Value>
 66 | 
 67 |             </Setter>
 68 | 
 69 |         </Style>
 70 | 
 71 |         <Style x:Key="BtnStyle2"
 72 |                TargetType="{x:Type Button}">
 73 | 
 74 |             <Setter Property="Height"
 75 |                     Value="180" />
 76 |             <Setter Property="Width"
 77 |                     Value="160" />
 78 |             <Setter Property="HorizontalAlignment"
 79 |                     Value="Center" />
 80 |             <Setter Property="VerticalAlignment"
 81 |                     Value="Center" />
 82 |             <Setter Property="Margin"
 83 |                     Value="0,0,0,25" />
 84 | 
 85 |             <Setter Property="Template">
 86 | 
 87 |                 <Setter.Value>
 88 | 
 89 |                     <ControlTemplate TargetType="{x:Type Button}">
 90 | 
 91 |                         <Border x:Name="border"
 92 |                                 BorderThickness="0"
 93 |                                 Background="{StaticResource mo}" />
 94 | 
 95 |                         <ControlTemplate.Triggers>
 96 | 
 97 |                             <Trigger Property="IsMouseOver"
 98 |                                      Value="True">
 99 | 
100 |                                 <Setter Property="Background"
101 |                                         TargetName="border"
102 |                                         Value="{StaticResource def}" />
103 | 
104 |                             </Trigger>
105 | 
106 |                             <Trigger Property="IsPressed"
107 |                                      Value="True">
108 | 
109 |                                 <Setter Property="Background"
110 |                                         TargetName="border"
111 |                                         Value="{StaticResource def}" />
112 | 
113 |                             </Trigger>
114 | 
115 |                         </ControlTemplate.Triggers>
116 | 
117 |                     </ControlTemplate>
118 | 
119 |                 </Setter.Value>
120 | 
121 |             </Setter>
122 | 
123 |         </Style>
124 | 
125 |         <Style x:Key="HeaderText1"
126 |                TargetType="TextBlock">
127 | 
128 |             <Setter Property="Text"
129 |                     Value="M V V M" />
130 |             <Setter Property="Foreground"
131 |                     Value="#2d2d2d" />
132 |             <Setter Property="FontFamily"
133 |                     Value="Fonts/#Roboto" />
134 |             <Setter Property="FontSize"
135 |                     Value="14" />
136 |             <Setter Property="HorizontalAlignment"
137 |                     Value="Center" />
138 |             <Setter Property="VerticalAlignment"
139 |                     Value="Top" />
140 |             <Setter Property="Margin"
141 |                     Value="0,110,0,0" />
142 | 
143 |         </Style>
144 | 
145 |         <Style x:Key="HeaderText2"
146 |                TargetType="TextBlock">
147 | 
148 |             <Setter Property="Text"
149 |                     Value="Window" />
150 |             <Setter Property="Foreground"
151 |                     Value="#2d2d2d" />
152 |             <Setter Property="FontFamily"
153 |                     Value="Fonts/#Roboto" />
154 |             <Setter Property="FontSize"
155 |                     Value="34" />
156 |             <Setter Property="HorizontalAlignment"
157 |                     Value="Center" />
158 |             <Setter Property="VerticalAlignment"
159 |                     Value="Top" />
160 |             <Setter Property="Margin"
161 |                     Value="0,130,0,0" />
162 | 
163 |         </Style>
164 | 
165 |         <Style x:Key="BackgroundStyle"
166 |                TargetType="Border">
167 |             <Setter Property="Background"
168 |                     Value="#C9CB2C" />
169 |             <Setter Property="Height"
170 |                     Value="500" />
171 |             <Setter Property="Width"
172 |                     Value="300" />
173 |             <Setter Property="CornerRadius"
174 |                     Value="20" />
175 |             <Setter Property="Border.Effect">
176 |                 <Setter.Value>
177 |                     <DropShadowEffect BlurRadius="20"
178 |                                       ShadowDepth="2"
179 |                                       Direction="-90"
180 |                                       Color="Black"
181 |                                       Opacity="0.3" />
182 |                 </Setter.Value>
183 |             </Setter>
184 |         </Style>
185 | 
186 |         <Style x:Key="Footer"
187 |                TargetType="Border">
188 |             <Setter Property="Background"
189 |                     Value="#F8F8F8" />
190 |             <Setter Property="Height"
191 |                     Value="100" />
192 |             <Setter Property="Width"
193 |                     Value="300" />
194 |             <Setter Property="CornerRadius"
195 |                     Value="0,0,20,20" />
196 |             <Setter Property="HorizontalAlignment"
197 |                     Value="Center" />
198 |             <Setter Property="VerticalAlignment"
199 |                     Value="Bottom" />
200 |             <Setter Property="Margin"
201 |                     Value="0,0,0,50" />
202 | 
203 |         </Style>
204 | 
205 |         <Style x:Key="FooterText1"
206 |                TargetType="TextBlock">
207 | 
208 |             <Setter Property="Text"
209 |                     Value="C #   D E S I G N   P R O" />
210 |             <Setter Property="FontSize"
211 |                     Value="28" />
212 |             <Setter Property="FontFamily"
213 |                     Value="Fonts/#Barlow Condensed" />
214 |             <Setter Property="Foreground"
215 |                     Value="#383844" />
216 |             <Setter Property="HorizontalAlignment"
217 |                     Value="Center" />
218 |             <Setter Property="VerticalAlignment"
219 |                     Value="Bottom" />
220 |             <Setter Property="Margin"
221 |                     Value="0,0,0,98" />
222 | 
223 |         </Style>
224 | 
225 |         <Style x:Key="FooterText2"
226 |                TargetType="TextBlock">
227 | 
228 |             <Setter Property="Text"
229 |                     Value="D E S I G N   T H E   I N T E R F A C E" />
230 |             <Setter Property="FontSize"
231 |                     Value="14" />
232 |             <Setter Property="FontFamily"
233 |                     Value="Fonts/#Barlow Condensed" />
234 |             <Setter Property="Foreground"
235 |                     Value="#5B5B6F" />
236 |             <Setter Property="HorizontalAlignment"
237 |                     Value="Center" />
238 |             <Setter Property="VerticalAlignment"
239 |                     Value="Bottom" />
240 |             <Setter Property="Margin"
241 |                     Value="0,0,0,78" />
242 | 
243 |         </Style>
244 | 
245 |         <!--// Exit Button Style //-->
246 | 
247 |         <ImageBrush x:Key="close_def"
248 |                     ImageSource="Images/shutdown_def.png"
249 |                     Stretch="Uniform" />
250 | 
251 |         <ImageBrush x:Key="close_mo"
252 |                     ImageSource="Images/shutdown_mo.png"
253 |                     Stretch="Uniform" />
254 | 
255 |         <Style x:Key="ExitBtnStyle"
256 |                TargetType="{x:Type Button}">
257 | 
258 |             <Setter Property="Height"
259 |                     Value="30" />
260 |             <Setter Property="Width"
261 |                     Value="30" />
262 |             <Setter Property="HorizontalAlignment"
263 |                     Value="Right" />
264 |             <Setter Property="VerticalAlignment"
265 |                     Value="Top" />
266 |             <Setter Property="Margin"
267 |                     Value="0,59,34,0" />
268 | 
269 |             <Setter Property="Template">
270 | 
271 |                 <Setter.Value>
272 | 
273 |                     <ControlTemplate TargetType="{x:Type Button}">
274 | 
275 |                         <Border x:Name="border"
276 |                                 BorderThickness="0"
277 |                                 Background="{StaticResource close_def}" />
278 | 
279 |                         <ControlTemplate.Triggers>
280 | 
281 |                             <Trigger Property="IsMouseOver"
282 |                                      Value="True">
283 | 
284 |                                 <Setter Property="Background"
285 |                                         TargetName="border"
286 |                                         Value="{StaticResource close_mo}" />
287 | 
288 |                             </Trigger>
289 | 
290 |                             <Trigger Property="IsPressed"
291 |                                      Value="True">
292 | 
293 |                                 <Setter Property="Background"
294 |                                         TargetName="border"
295 |                                         Value="{StaticResource close_mo}" />
296 | 
297 |                             </Trigger>
298 | 
299 |                         </ControlTemplate.Triggers>
300 | 
301 |                     </ControlTemplate>
302 | 
303 |                 </Setter.Value>
304 | 
305 |             </Setter>
306 | 
307 |         </Style>
308 | 
309 |     </Application.Resources>
310 |     
311 | </Application>
312 | 


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/App.xaml.cs:
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 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 MVVM_Window_App
10 | {
11 |     /// <summary>
12 |     /// Interaction logic for App.xaml
13 |     /// </summary>
14 |     public partial class App : Application
15 |     {
16 |     }
17 | }
18 | 


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/Fonts/BarlowCondensed-Regular.ttf:
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https://raw.githubusercontent.com/CSharpDesignPro/WPF---Open-a-New-Window-in-MVVM/8336191d3065c6c6d04f85b653af2ddb2bdfc1d6/Fonts/BarlowCondensed-Regular.ttf


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/Fonts/Roboto-Regular.ttf:
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https://raw.githubusercontent.com/CSharpDesignPro/WPF---Open-a-New-Window-in-MVVM/8336191d3065c6c6d04f85b653af2ddb2bdfc1d6/Fonts/Roboto-Regular.ttf


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/Images/closed.png:
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https://raw.githubusercontent.com/CSharpDesignPro/WPF---Open-a-New-Window-in-MVVM/8336191d3065c6c6d04f85b653af2ddb2bdfc1d6/Images/closed.png


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/Images/open.png:
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https://raw.githubusercontent.com/CSharpDesignPro/WPF---Open-a-New-Window-in-MVVM/8336191d3065c6c6d04f85b653af2ddb2bdfc1d6/Images/open.png


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/Images/shutdown_def.png:
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https://raw.githubusercontent.com/CSharpDesignPro/WPF---Open-a-New-Window-in-MVVM/8336191d3065c6c6d04f85b653af2ddb2bdfc1d6/Images/shutdown_def.png


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/Images/shutdown_mo.png:
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https://raw.githubusercontent.com/CSharpDesignPro/WPF---Open-a-New-Window-in-MVVM/8336191d3065c6c6d04f85b653af2ddb2bdfc1d6/Images/shutdown_mo.png


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/LICENSE:
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 1 | MIT License
 2 | 
 3 | Copyright (c) 2022 Arun Mutharasu
 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 | 


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/MainWindow.xaml:
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 1 | <!--/// <Summary>
 2 |     /// Author : R. Arun Mutharasu
 3 |     /// Created : 30-12-2022
 4 |     /// YouTube Channel : C# Design Pro 
 5 |     /// </Summary>-->
 6 |     
 7 |     <Window x:Class="MVVM_Window_App.MainWindow"
 8 |         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
 9 |         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
10 |         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
11 |         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
12 |         xmlns:local="clr-namespace:MVVM_Window_App"
13 |         mc:Ignorable="d"
14 |         Title="MainWindow"
15 |         Height="600"
16 |         Width="350"
17 |         AllowsTransparency="True"
18 |         WindowStartupLocation="CenterScreen"
19 |         WindowStyle="None"
20 |         Background="Transparent">
21 | 
22 |     <Grid>
23 | 
24 |         <!--// Background with DropShadowEffect //-->
25 |         <Border Style="{StaticResource BackgroundStyle}" />
26 | 
27 |         <!--// Header Text //-->
28 |         <TextBlock Style="{StaticResource HeaderText1}" />
29 |         <TextBlock Style="{StaticResource HeaderText2}" />
30 | 
31 |         <!--// Button to open a New Window //-->
32 |         <Button Style="{StaticResource BtnStyle1}"
33 |                 Command="{Binding OpenWindowCommand}" />
34 | 
35 |         <!--// Footer Text //-->
36 |         <Border Style="{StaticResource Footer}" />
37 |         <TextBlock Style="{StaticResource FooterText1}" />
38 |         <TextBlock Style="{StaticResource FooterText2}" />
39 |         
40 |         <!--// Button to close app //-->
41 |         <Button Style="{StaticResource ExitBtnStyle}"
42 |                 Command="{Binding CloseWindowCommand}" />
43 | 
44 |     </Grid>
45 | 
46 | </Window>
47 | 


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/MainWindow.xaml.cs:
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 1 | using MVVM_Window_App.Services;
 2 | using System;
 3 | using System.Collections.Generic;
 4 | using System.Linq;
 5 | using System.Text;
 6 | using System.Threading.Tasks;
 7 | using System.Windows;
 8 | using System.Windows.Controls;
 9 | using System.Windows.Data;
10 | using System.Windows.Documents;
11 | using System.Windows.Input;
12 | using System.Windows.Media;
13 | using System.Windows.Media.Imaging;
14 | using System.Windows.Navigation;
15 | using System.Windows.Shapes;
16 | using MVVM_Window_App.ViewModel;
17 | 
18 | namespace MVVM_Window_App
19 | {
20 |     /// <summary>
21 |     /// Interaction logic for MainWindow.xaml
22 |     /// </summary>
23 |     public partial class MainWindow : Window
24 |     {
25 |         public MainWindow()
26 |         {
27 |             InitializeComponent();
28 | 
29 |             // Create an instance of the WindowService
30 |             var windowService = new WindowService();
31 | 
32 |             // Set the data context for the main window to a new instance of the ViewModel,
33 |             // passing in the WindowService as a dependency
34 |             DataContext = new MainViewModel(windowService);
35 |         }
36 |     }
37 | }
38 | 


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/README.md:
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1 | # WPF - Open a New Window in MVVM
2 | 
3 | ![Thumbnail New](https://user-images.githubusercontent.com/55704859/210026842-626e4e10-384c-49fe-bc7b-778dc552475a.png)
4 | 
5 | YouTube Video Tutorial Link : https://youtu.be/3WeXjhc-TM8
6 | 
7 | Icon Credits : https://icons8.com/icons
8 | 


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/Services/IWindowService.cs:
--------------------------------------------------------------------------------
 1 | using System;
 2 | using System.Collections.Generic;
 3 | using System.Linq;
 4 | using System.Text;
 5 | using System.Threading.Tasks;
 6 | 
 7 | namespace MVVM_Window_App.Services
 8 | {
 9 |     public interface IWindowService
10 |     {
11 |         void OpenWindow();
12 |         void CloseWindow();
13 |     }
14 | }
15 | 


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/Services/WindowService.cs:
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 1 | using MVVM_Window_App.View;
 2 | using System;
 3 | using System.Collections.Generic;
 4 | using System.Linq;
 5 | using System.Text;
 6 | using System.Threading.Tasks;
 7 | using System.Windows;
 8 | 
 9 | namespace MVVM_Window_App.Services
10 | {
11 |     public class WindowService : IWindowService
12 |     {
13 |         public void OpenWindow()
14 |         {
15 |             // Create an instance of the new window
16 |             var window = new NewWindow();
17 | 
18 |             // Show the new window
19 |             window.ShowDialog();
20 |         }
21 | 
22 |         public void CloseWindow()
23 |         {
24 |             // Get a reference to the current window
25 |             var window = Application.Current.Windows.OfType<Window>().SingleOrDefault(x => x.IsActive);
26 | 
27 |             // Close the window
28 |             if (window != null)
29 |             {
30 |                 window.Close();
31 |             }
32 |         }
33 |     }
34 | }
35 | 


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/Source Code/MVVM Window App.rar:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/CSharpDesignPro/WPF---Open-a-New-Window-in-MVVM/8336191d3065c6c6d04f85b653af2ddb2bdfc1d6/Source Code/MVVM Window App.rar


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/Utilities/RelayCommand.cs:
--------------------------------------------------------------------------------
 1 | using System;
 2 | using System.Collections.Generic;
 3 | using System.Linq;
 4 | using System.Text;
 5 | using System.Threading.Tasks;
 6 | using System.Windows.Input;
 7 | 
 8 | namespace Open_Window_Trial_1.Utilities
 9 | {
10 |     public class RelayCommand : ICommand
11 |     {
12 |         private readonly Action<object> _execute;
13 |         private readonly Func<object, bool> _canExecute;
14 | 
15 |         public event EventHandler CanExecuteChanged
16 |         {
17 |             add { CommandManager.RequerySuggested += value; }
18 |             remove { CommandManager.RequerySuggested -= value; }
19 |         }
20 |         public RelayCommand(Action<object> execute, Func<object, bool> canExecute = null)
21 |         {
22 |             _execute = execute;
23 |             _canExecute = canExecute;
24 |         }
25 | 
26 |         public bool CanExecute(object parameter) => _canExecute == null || _canExecute(parameter);
27 |         public void Execute(object parameter) => _execute(parameter);
28 |     }
29 | }
30 | 


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/View/NewWindow.xaml:
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 1 | <Window x:Class="MVVM_Window_App.View.NewWindow"
 2 |         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
 3 |         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
 4 |         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
 5 |         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
 6 |         xmlns:local="clr-namespace:MVVM_Window_App.View"
 7 |         mc:Ignorable="d"
 8 |         Title="NewWindow"
 9 |         Height="600"
10 |         Width="350"
11 |         AllowsTransparency="True"
12 |         WindowStartupLocation="Manual"
13 |         WindowStyle="None"
14 |         Background="Transparent"
15 |         Topmost="True">
16 | 
17 |     <Grid>
18 | 
19 |         <!--// Background with DropShadowEffect //-->
20 |         <Border Style="{StaticResource BackgroundStyle}" />
21 | 
22 |         <!--// Header Text //-->
23 |         <TextBlock Style="{StaticResource HeaderText1}" />
24 |         <TextBlock Style="{StaticResource HeaderText2}" />
25 | 
26 |         <!--// Button to close the New Window //-->
27 |         <Button Style="{StaticResource BtnStyle2}"
28 |                 Command="{Binding CloseWindowCommand}" />
29 | 
30 |         <!--// Footer Text //-->
31 |         <Border Style="{StaticResource Footer}" />
32 |         <TextBlock Style="{StaticResource FooterText1}" />
33 |         <TextBlock Style="{StaticResource FooterText2}" />
34 | 
35 |     </Grid>
36 | 
37 | </Window>
38 | 


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/View/NewWindow.xaml.cs:
--------------------------------------------------------------------------------
 1 | using System;
 2 | using System.Collections.Generic;
 3 | using System.Linq;
 4 | using System.Text;
 5 | using System.Threading.Tasks;
 6 | using System.Windows;
 7 | using System.Windows.Controls;
 8 | using System.Windows.Data;
 9 | using System.Windows.Documents;
10 | using System.Windows.Input;
11 | using System.Windows.Media;
12 | using System.Windows.Media.Imaging;
13 | using System.Windows.Shapes;
14 | using MVVM_Window_App.Services;
15 | using MVVM_Window_App.ViewModel;
16 | 
17 | namespace MVVM_Window_App.View
18 | {
19 |     /// <summary>
20 |     /// Interaction logic for NewWindow.xaml
21 |     /// </summary>
22 |     public partial class NewWindow : Window
23 |     {
24 |         public NewWindow()
25 |         {
26 |             InitializeComponent();
27 |             var windowService = new WindowService();
28 |             DataContext = new MainViewModel(windowService);
29 | 
30 |             // Position the new window w/r to the WorkArea
31 |             Top = (SystemParameters.WorkArea.Height - Height) / 2 + 50;
32 |             Left = (SystemParameters.WorkArea.Width - Width) / 2 + 120;
33 |         }
34 |     }
35 | }
36 | 


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/ViewModel/MainViewModel.cs:
--------------------------------------------------------------------------------
 1 | using MVVM_Window_App.Services;
 2 | using Open_Window_Trial_1.Utilities;
 3 | using System;
 4 | using System.Collections.Generic;
 5 | using System.Linq;
 6 | using System.Text;
 7 | using System.Threading.Tasks;
 8 | using System.Windows.Input;
 9 | 
10 | namespace MVVM_Window_App.ViewModel
11 | {
12 |     public class MainViewModel
13 |     {
14 |         private IWindowService _windowService;
15 |         public ICommand OpenWindowCommand { get; set; }
16 |         public ICommand CloseWindowCommand { get; set; }
17 | 
18 |         private void OnOpenWindow()
19 |         {
20 |             _windowService.OpenWindow();
21 |         }
22 | 
23 |         private void OnCloseWindow()
24 |         {
25 |             _windowService.CloseWindow();
26 |         }
27 | 
28 |         public MainViewModel(IWindowService windowService)
29 |         {
30 |             _windowService = windowService;
31 |             OpenWindowCommand = new RelayCommand(param => OnOpenWindow());
32 |             CloseWindowCommand = new RelayCommand(param => OnCloseWindow());
33 |         }
34 |        
35 |     }
36 | }
37 | 


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