WPF: Adorner Hit Testing / MouseDown Event
- by stefan.at.wpf
Hello,
I have an Adorner which adornes a Border (please see screenshot below). The MouseDown Event for the Adorner is however only raised, when clicking on an element in the adorner. I need the MouseDown Event to be raised, when clicking on any place in the adorner above the adorned element. How can this be done? Do I have to add an transparent control in the adorner or is there another way for this? Thanks for any help!
Screenshot and VS 2008 Project: http://cid-0432ee4cfe9c26a0.skydrive.live.com/browse.aspx/%C3%96ffentlich?uc=2
The Code for the adorner:
class myAdorner : Adorner
{
public myAdorner(UIElement element)
: base(element)
{
this.MouseDown += new System.Windows.Input.MouseButtonEventHandler(myAdorner_MouseDown);
}
void myAdorner_MouseDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
{
MessageBox.Show("ok");
}
// Draws two rectangles: one in the upper-left and another one in the lower-right corner
protected override void OnRender(System.Windows.Media.DrawingContext drawingContext)
{
Size size = this.AdornedElement.RenderSize;
Rect r1 = new Rect(0.5, 0.5, 20, 20);
Rect r4 = new Rect(size.Width - 20.5, size.Height - 20.5, 20, 20);
SolidColorBrush brush = new SolidColorBrush(Colors.AliceBlue);
Pen pen = new Pen(Brushes.Black, 1);
drawingContext.DrawRectangle(brush, pen, r1);
drawingContext.DrawRectangle(brush, pen, r4);
}
}
