Assign Short Cut Key to a button in WPF

Question

How to assign short-cut key to a button in WPF?

Googling gave me the answer as to append _ instead of \'&\' in standard Winforms.

So after I have done a

Answer 1

Solution for key binding (+ button binding) with own commands:

The body of XAML file:

and .CS file:

public partial class Window1 : Window
{
    public Window1()
    {
        InitializeComponent();
    }

    public void FirstMethod(Object sender, ExecutedRoutedEventArgs e)
    {
        // btn1
    }

    public void SecondMethod(Object sender, ExecutedRoutedEventArgs e)
    {
        // btn2
    }
}