WPF Standard Commands - Where's Exit?

Unfortunately, there is no predefined ApplicationCommands.Exit. Adding one to WPF was suggested on Microsoft Connect in 2008: http://connect.microsoft.com/VisualStudio/feedback/details/354300/add-predefined-wpf-command-applicationcommands-exit. The item has been marked closed/postponed, however.

Mike Taulty discussed how to create your own Exit command in an article on his blog.

Not that complex actually (but still, M$ sucks for not providing it). Here you go:

public static class MyCommands
{
    private static readonly ICommand appCloseCmd = new ApplicationCloseCommand();
    public static ICommand ApplicationCloseCommand
    {
        get { return appCloseCmd; }
    }
}

//===================================================================================================
public class ApplicationCloseCommand : ICommand
{
    public event EventHandler CanExecuteChanged
    {
        // You may not need a body here at all...
        add { CommandManager.RequerySuggested += value; }
        remove { CommandManager.RequerySuggested -= value; }
    }

    public bool CanExecute(object parameter)
    {
        return Application.Current != null && Application.Current.MainWindow != null;
    }

    public void Execute(object parameter)
    {
        Application.Current.MainWindow.Close();
    }
}

And the body of the AplicationCloseCommand.CanExecuteChanged event handler may not be even needed.

You use it like so:

<MenuItem Header="{DynamicResource MenuFileExit}" Command="MyNamespace:MyCommands.ApplicationCloseCommand"/>

Cheers!

(You cannot imagine how long it took me to discover this Command stuff myself...)

AFAIK there's no ApplicationCommands.Quit or ApplicationCommands.Exit, so I guess you're gonna have to create it yourself...

Anyway, if you're using the MVVM pattern, RoutedCommands are not exactly handy, so it's better to use a lightweight alternative like RelayCommand or DelegateCommand.