The button code as shown below, when the diagram to save as XML file, then open the xml file ,But It doesn't work. I hope you can give me some help or Suggestion?


private void btn_Click(object sender, RoutedEventArgs e){
diagram.CustomBehavior = null;
diagram.Behavior = Behavior.Custom;
diagram.CustomNodeType = typeof(Button);
}

private void diagram_InitializeNode(object sender, NodeEventArgs e)
{

DiagramNode node = e.Node as DiagramNode;
node.EnabledHandles = AdjustmentHandles.All;
node.HandlesStyle = HandlesStyle.SquareHandles;
if (node != null)
{
Button tbox = node.UIElement as Button;
if (tbox != null)
{
tbox.Click +=new RoutedEventHandler(Button_Click);
}
}
}

void Button_Click(object sender, RoutedEventArgs e)
{
MessageBox.Show("Test!");
        }

i see，  thank you！