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POExecute same Prism Command from different ViewModels
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  1. POExecute same Prism Command from different ViewModels
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    copied!<p>Is it possible to execute somehow one Command from a different ViewModels in the WPF application using Prism?</p> <p>Let me explain what I mean.</p> <p>I have the MainMenuViewModel class:</p> <pre><code>public class MainMenuViewModel { private ICommand _aboutCommand; public ICommand AboutCommand { get { if (_aboutCommand == null) { _aboutCommand = new DelegateCommand(() =&gt; { MessageBox.Show("About menu item clicked!"); }); } return _aboutCommand; } } } </code></pre> <p>also there is the View for this model:</p> <pre><code>&lt;Menu IsMainMenu="True"&gt; &lt;MenuItem Header="Nápověda"&gt; &lt;MenuItem Header="O Aplikaci" x:Name="About" Command="{Binding AboutCommand}" /&gt; &lt;/MenuItem&gt; &lt;/Menu&gt; </code></pre> <p>There is another module in the application, which should execute the command with the same behavior (or even probably better - the same command):</p> <pre><code>public class MunisatorViewModel { private ICommand _aboutCommandInAnotherModule; public ICommand AboutCommandInAnotherModule { get { if (_aboutCommandInAnotherModule== null) { _aboutCommandInAnotherModule= new DelegateCommand(() =&gt; { MessageBox.Show("About menu item clicked!"); }); } return _aboutCommandInAnotherModule; } } } </code></pre> <p>this module has the View:</p> <pre><code>&lt;StackPanel Background="White" HorizontalAlignment="Center" VerticalAlignment="Top"&gt; &lt;Button cmd:Click.Command="{Binding AboutCommandInAnotherModule}"&gt;About&lt;/Button&gt; &lt;/StackPanel&gt; </code></pre> <p>Is it possible to avoid the duplicate code?</p> <p>P.S. I understand, that I can create base class for this two ViewModels and describe this Commands there, but problem is, that some of the ViewModels has already different base classes.</p>
 

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