[news.eclipse.platform.swt] Delete item from CCombo (ComboBoxCellEditor)

[moritz.kreutzer@xxxxxx (Moritz Kreutzer)]

Hi everyone,
i use a TreeViewer with several ComboBoxCellEditors. I already managed to 
add new items to one of them dynamically.
But how can i delete items out of the CCombo? 
I thought about deleting an item when i select it in the list and then 
delete its text in the editor. But I do not know how to get the index of 
the item...
Any idea?

Regards, Mo.