WPF MVVM: How to close a window

Question

I have a Button that closes my window when it\'s clicked:

Ok

Answer 1

There is a useful behavior for this task which doesn't break MVVM, a Behavior, introduced with Expression Blend 3, to allow the View to hook into commands defined completely within the ViewModel.

This behavior demonstrates a simple technique for allowing the ViewModel to manage the closing events of the View in a Model-View-ViewModel application.

This allows you to hook up a behavior in your View (UserControl) which will provide control over the control's Window, allowing the ViewModel to control whether the window can be closed via standard ICommands.

Using Behaviors to Allow the ViewModel to Manage View Lifetime in M-V-VM

http://gallery.expression.microsoft.com/WindowCloseBehavior/

Above link has been archived to http://code.msdn.microsoft.com/Window-Close-Attached-fef26a66#content