how to add multiple command bindings in wpf

Question

I am working with WPF. I want to create keyboard shortcuts for my WPF application. I have created as following. The first command binding tag for "open" is working and command binding for exit is not working. I dont know what is the reason.

<Window.CommandBindings>
<CommandBinding Command="Open" Executed="CommandBinding_Executed"/>
<CommandBinding Command="Exit" Executed="CommandBinding_Executed_1" />
</Window.CommandBindings>
<Window.InputBindings>
<KeyBinding Command="Open" Key="O" Modifiers="control" />
<KeyBinding Command="Exit" Key="E" Modifiers="control"/>
</Window.InputBindings>

Above code is getting the following error:

Cannot convert string 'Exit' in attribute 'Command' to object of type 'System.Windows.Input.ICommand'. CommandConverter cannot convert from System.String. Error at object 'System.Windows.Input.CommandBinding' in markup file 'WpfApplication2;component/window1.xaml' Line 80 Position 25.

Answer 1

You problem is that there is no exit command. You'll have to roll your own.

See here for built-in ApplicationCommands

It's pretty easy to create your own, I use a static utility class to hold common commands that I use often. Something like this:

public static class AppCommands
{
    private static RoutedUICommand exitCommand = new RoutedUICommand("Exit","Exit", typeof(AppCommands));

    public static RoutedCommand ExitCommand
    {
        get { return exitCommand; }
    }

    static AppCommands()
    {
        CommandBinding exitBinding = new CommandBinding(exitCommand);
        CommandManager.RegisterClassCommandBinding(typeof(AppCommands), exitBinding);
    }
}

Then you should be able to bind it like this:

<KeyBinding Command="{x:Static local:AppCommands.Exit}" Key="E" Modifiers="control"/>