Implement Keyboard Shortcuts

Question

I currently use the onKeyDown event and an if/else statement to create keyboard shortcuts:

if ((Keyboard.Modifiers & ModifierKeys.Shift) == ModifierKeys.Shift && e.Key == Key.Tab) {

} else if (e.Key == Key.Tab) {

} ...

However, if I have quite a few more keyboard shortcuts, this gets messy.

Is there a better implementation?

Answer 1

You should look at implementing <CommandBindings> and <InputBindings>:

<Window.CommandBindings>
    <CommandBinding Command="Settings" CanExecute="SettingsCanExecute" Executed="SettingsExecuted" />
</Window.CommandBindings>

<Window.InputBindings>
    <KeyBinding Command="Settings" Key="S" Modifiers="Alt" />
</Window.InputBindings>

Your <Button> then becomes:

<Button Height="50" Width="50" Margin="50,5,0,0" Command="Settings" />

The SettingsCanExecute method determines when the button is enabled and the SettingsExecuted method is called when the button is pressed or the key combination struck.

You then don't need the KeyDown handler.

There's a full tutorial on Switch On The Code.

More information on CommandBindings and InputBindings can be found on the MSDN.