Double clicking a list item

Hi,
I'm just trying to perform an action by double-clicking a list item, but doesn't seem to work. code:
WHEN-MOUSE-DOUBLE-CLICK trigger on List item (TList).
DECLARE
v_verwalten VARCHAR2(40);
BEGIN
v_verwalten := :CONTROL.LIST;
IF v_verwalten = 'Codes verwalten'
THEN NEW_FORM('COD_VER');
END IF;
END;

Hi all,
When the list item type is tlist, the trigger 'WHEN-LIST-ACTIVATED' will fire for "mouse double click" and "key enter".
Try with placing the code in 'WHEN-LIST-ACTIVATED' trigger.
Cheers,
Zakiy

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