How to Close a Window in WPF on a escape key

Question

Possible Duplicate:
How can I assign the 'Close on Escape-key press' behavior to all WPF windows within a project?

Answer 1

Option 1

Use Button.IsCancel property.

Cancel

When you set the IsCancel property of a button to true, you create a Button that is registered with the AccessKeyManager. The button is then activated when a user presses the ESC key.

However, this works properly only for Dialogs.

Option2

You add a handler to PreviewKeyDown on the window if you want to close windows on Esc press.

public MainWindow()
{
    InitializeComponent();

    this.PreviewKeyDown += new KeyEventHandler(HandleEsc);
}

private void HandleEsc(object sender, KeyEventArgs e)
{
    if (e.Key == Key.Escape)
        Close();
}