Providing Short cut keys for silverlight controls

Try this code once. I think it will work perfectly.

public partial class MainPage : UserControl
{
    private bool _CtrlPressed;

    public MainPage()
    {
        InitializeComponent();

        LayoutRoot.KeyDown += new KeyEventHandler(LayoutRoot_KeyDown);
        LayoutRoot.KeyUp += new KeyEventHandler(LayoutRoot_KeyUp);
    }

    void LayoutRoot_KeyDown(object sender, KeyEventArgs e)
    {
        if (e.Key == Key.Ctrl)
            _CtrlPressed = true;
    }

    void LayoutRoot_KeyUp(object sender, KeyEventArgs e)
    {
        if (e.Key == Key.Ctrl)
            _CtrlPressed = false;

        if (e.Key == Key.S && _CtrlPressed)
        {
            Debug.WriteLine("Ctrl + S was pressed");
            //Execute save operation
        }
    }
}
Thanks& Regards,
Rajesh M.