getting postion of a control in mousemove

Question

Hi

I have a silverlight control in which i am dynamically creating shapes on button click These shapes are draggable across the form. Now i want to get top and left postion of a control on dragging (mousemove). Please help

Answer 1

Taking a look at your question history I can think of two approaches. I suspect that the shape is simply being placed on a Canvas and the MouseMove of which you speak refers to an event handler you've attached to the Canvas. On that basis then.

void Canvas_MouseMove(object sender, MouseEventArgs e) 
{ 

    Type currentType = e.OriginalSource.GetType();

    // Make decisions based on value of currentType here 

    DependencyObject source = (DependencyObject)e.OriginalSource;
    Point p = new Point(Canvas.GetLeft(source), Canvas.GetTop(source));

} 

The more general solution is to use the TransformToVisual approach. Something like:-

var transform = ((UIElement)e.OriginalSource).TransformToVisual(MyCanvas);
Point p = transform.Transform(Point(0,0));