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Todd
710
How to detect click on an image vs click on the node's text.
posted

In a treeview, I need to be able to determine what part of a node has been clicked by the mouse.  Mostly I need to differentiate between a click on a left image and a click on the node's text.

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  • 69832
    Suggested Answer
    Offline posted

    You could use the UIElement.ElementFromPoint method to hit test for an ImageUIElement:

    private void ultraTree1_MouseDown(object sender, MouseEventArgs e)
    {
        UltraTree tree = sender as UltraTree;
        UIElement controlElement = tree.UIElement;
        UIElement elementAtPoint = controlElement != null ? controlElement.ElementFromPoint( e.Location ) : null;
        bool imageAtPoint = false;
        while ( elementAtPoint != null )
        {
            if ( elementAtPoint is ImageUIElement )
            {
                imageAtPoint = true;
                break;
            }

            elementAtPoint = elementAtPoint.Parent;
        }

        if ( imageAtPoint )
        {
        }
    }

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