Question

I am working on a project and I have some textboxes some of them digits only but in xaml inputscope=”number” the virtual keyboard appears with some characters too like “[ + % ]” ….
I used key.down event but shift+4 (+) is passed the exeception
I searched and found control.modiferKey but its not on metro app

I think that

if keyDown is shift boolean = true 
if keyUp boolean = false 
if boolean == true and digit pressed do nothing 

but there must be a simple way
can anyone help me?

Answer 1

Add this code to the constructor it will handle a global key down and key

Window.Current.CoreWindow.KeyDown += CoreWindow_KeyDown;
        Window.Current.CoreWindow.KeyUp += CoreWindow_KeyUp;

heres their events

void CoreWindow_KeyUp(Windows.UI.Core.CoreWindow sender, Windows.UI.Core.KeyEventArgs args)
    {
        //this.Frame.Navigate(typeof(MainPage));
        var key = args.VirtualKey;
        string aa = args.ToString();
    }

    void CoreWindow_KeyDown(Windows.UI.Core.CoreWindow sender, Windows.UI.Core.KeyEventArgs args)
    {
        //this.Frame.Navigate(typeof(MainPage));
        var key = args.VirtualKey;
        string aa = args.ToString();
    }

you can ahndle your own logic inside this event. Most of the ky down event can be captured like dis … Please try implementing the code and see