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copied!<p>Take a look at <a href="http://msdn.microsoft.com/en-us/library/system.windows.input.routedcommand.aspx" rel="noreferrer">RoutedCommand</a>s.</p> <p>Define your command in myclass somewhere as follows:</p> <pre><code> public static readonly RoutedCommand Login = new RoutedCommand(); </code></pre> <p>Now define your button with this command:</p> <pre><code> <Button Command="{x:Static myclass.Login}" /> </code></pre> <p>You can use CommandParameter for extra information..</p> <p>Now last but not least, start listening to your command:</p> <p>In the constructor of the class you wish to do some nice stuff, you place:</p> <pre><code> CommandBindings.Add(new CommandBinding(myclass.Login, ExecuteLogin)); </code></pre> <p>or in XAML:</p> <pre><code> <UserControl.CommandBindings> <CommandBinding Command="{x:Static myclass.Login}" Executed="ExecuteLogin" /> </UserControl.CommandBindings> </code></pre> <p>And you implement the delegate the CommandBinding needs:</p> <pre><code> private void ExecuteLogin(object sender, ExecutedRoutedEventArgs e) { //Your code goes here... e has your parameter! } </code></pre> <p>You can start listening to this command everywhere in your visual tree!</p> <p>Hope this helps</p> <p>PS You can also define the CommandBinding with a CanExecute delegate which will even disable your command if the CanExecute says so :)</p> <p>PPS Here is another example: <a href="http://www.wpfwiki.com/Default.aspx?Page=WPF%20Q13.8&AspxAutoDetectCookieSupport=1" rel="noreferrer">RoutedCommands in WPF</a></p>

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