Hello Manfred Pohler,
RadControls for WinForms are similar to Microsoft ones. However, they provide richer functionality and therefore, there are differences in the API as well as in the behavior.
This is also the case with
RadListBox. Its
ListBoxElement has the
ItemDataBound event, where you can associate the custom objects to the
Tag property of
RadListBoxItems. This is the approach you can use when you need to get an object when selecting an item.
I have attached a sample application to demonstrate the above approach. The default event handler of
RadListBox on double click at design time is addressed for the Q1 2008.
If you have additional questions, do not hesitate to contact me.
Best wishes,
Nikolay
the Telerik team