Hello I am new to this forum. I have followed this example Expand / Collapse Decorator in http://examplesaspnetdiagram.nevron.com/ but when I click to collapse or expand the node does nothing. I'm debugging the application but the code never calls the method in code behind NDrawingView1_AsyncClick. My aspx has this code:

AjaxEnabled = "true" AsyncAutoRefreshEnabled = "true" ClientId = "NDrawingView1"
AsyncCallbackTimeout = "1000" OnAsyncClick = "NDrawingView1_AsyncClick"
OnQueryAjaxTools = "NDrawingView1_QueryAjaxTools" ClientIDMode = "AutoID" />

What am I doing wrong? Help please!