widget & ICallbackEventhandler

Feb 12, 2009 at 7:46 PM
Edited Feb 12, 2009 at 7:48 PM
Ok this one might be out there:  I am trying to create a widget that allows some drag & drop functionality (similar to the reordering of the widgets themselves).

I'm almost there - the list is built, and provided the user is not an administrator (because then dragging and dropping is taken over by the widget zone), the user can drag the item around within the widget but there is of course a problem.  When the user releases the the item, I get:

"the target '597 [....] 5e0$List for the callback could not be found or did not implement ICallbackEventHandler.

So I tried implementing the ICallbackEventHandler but admittedly have no idea what i'm doing.  Any pointers?

so far I have :

public partial class widgets_myWidget_widget : WidgetBase, ICallbackEventHandler


ICallbackEventHandler Members


private string _Callback;


public string GetCallbackResult()




return _Callback;



public void RaiseCallbackEvent(string eventArgument)





Feb 12, 2009 at 8:12 PM
i'm wondering if the problem is that it is looking for control ...$list but in the control name is ..._list?