/*Functionality Added to make the calculator work with Keyboard NumberPad
* When the correct Key is detected it will fire off the corresponding button press*/
private void Window_KeyDownPreview(object sender, KeyEventArgs e)
{
switch (e.Key)
{
case Key.NumPad0:
Zero.RaiseEvent(new RoutedEventArgs(Button.ClickEvent));
break;
case Key.NumPad1:
One.RaiseEvent(new RoutedEventArgs(Button.ClickEvent));
break;
case Key.NumPad2:
Two.RaiseEvent(new RoutedEventArgs(Button.ClickEvent));
break;
case Key.NumPad3:
Three.RaiseEvent(new RoutedEventArgs(Button.ClickEvent));
break;
case Key.NumPad4:
Four.RaiseEvent(new RoutedEventArgs(Button.ClickEvent));
break;
case Key.NumPad5:
Five.RaiseEvent(new RoutedEventArgs(Button.ClickEvent));
break;
case Key.NumPad6:
Six.RaiseEvent(new RoutedEventArgs(Button.ClickEvent));
break;
case Key.NumPad7:
Seven.RaiseEvent(new RoutedEventArgs(Button.ClickEvent));
break;
case Key.NumPad8:
Eight.RaiseEvent(new RoutedEventArgs(Button.ClickEvent));
break;
case Key.NumPad9:
Nine.RaiseEvent(new RoutedEventArgs(Button.ClickEvent));
break;
case Key.Add:
Plus.RaiseEvent(new RoutedEventArgs(Button.ClickEvent));
break;
case Key.Subtract:
Minus.RaiseEvent(new RoutedEventArgs(Button.ClickEvent));
break;
case Key.Multiply:
Multiply.RaiseEvent(new RoutedEventArgs(Button.ClickEvent));
break;
case Key.Divide:
Divide.RaiseEvent(new RoutedEventArgs(Button.ClickEvent));
break;
case Key.Enter:
Equals.RaiseEvent(new RoutedEventArgs(Button.ClickEvent));
break;
}
}