Hope somebody can help me with this problem.
I have a combo box selection for user. It contents for eg.:
A
B
C
When user clicks and selects, say, "B", it will be selected and when the user selects from the same combo box again, the following is listed
A
B
B
C
The item "B" appears twice in the combo list. If user selects "B" again, it will then appear three times in the list.
How do I prevent this from happening and get the original combo list?

Thanks & Regards.