KeyDown before TextChanged event

Question

I wonder if it's possible to make KeyDown event trigger before TextChanged?

I have added these two events for a simple TextBox and now I want to check if Delete key was pressed. If yes, <do nothing>, if no <so something>. I have created a boolean field, that "remembers" if I pressed Delete, but the problem is KeyDown triggers after TextChanged, so it doesn't work...

Answer 1

To cancel Keydown event you can add a PreviewKeyDown:

private void TextBox_PreviewKeyDown(object sender, KeyEventArgs e)
{
  if(e.Key == Key.Delete)
     e.Handled = true;
}

Answer 2

what about PreviewKeyDown event?

Edit:

PreviewKeyDown event is a tunneling routed event, it travels down the containment hierarchy. KeyDown event is a bubbling routed event, it travels up the containment hierarchy.