Disable Combo Box once user has selected item from list
Posted on 2011-02-15
I have a combo box on a form with four items in the list. Once the item has been selected, I would like to disable the combo box. As users can inadvertently change the item by selecting the combo box and using the drop down menu listing the items.
Is there anyway to prevent this from happening? Perhaps test the field and see if it is blank then allow the user to select from the drop down menu and if it is not blank the combo box loses focus not allowing the user to change the entry previously entered.