EditText.KeyPress - Delete Softkey shows no effect

Hi!

I have the following problem: If I attach a KeyPress-Eventhandler to my EditText, the delete key from the softkeyboard has no effect anymore. All other keys work properly:

FindViewById<EditText>( Resource.Id.editTextLookupQuery ).KeyPress += this.onEditQueryKeyPress;

...

protected void onEditQueryKeyPress( object _sender, View.KeyEventArgs _e )
{
  if ( _e.Event.Action == KeyEventActions.Down && _e.KeyCode == Keycode.Enter )
  {
    this.executeDelayed( 0.25, delegate { this.executeLookup(); } );
    _e.Handled = true;
  }
}

When ENTER is pressed in the EditView, the code inside the "if" is executed, as expected. But hitting the DEL key has no effect anymore, I cannot delete characters in the EditView. If I don't assign the method to "KeyPress", the DEL key works properly again!

Is it a bug or a feature? ;)

I hope, someone can help. :)