>Hi,
>
>One of the forms has a combobox where a user makes a selection then clicks on a command button. In the click code of the command button I check that a user made a selection in the combobox using this code:
>
>

>	IF this.Parent.site_lookup.ListIndex = 0
>		=MESSAGEBOX("Please select Program",48,"Missing Selection")
>		RETURN 
>	ENDIF 
>

>
>But a couple of times (which I can't duplicate) the combobox's DisplayValue (or the Value you see) was blank but the above code didn't fire. It tells me that there could be a case where the .ListIndex is greater than 0 but no item is selected in the combo.
>How else, beside the code above, I can check that the user did indeed make a selection?
>
>Update: In other words, can I use the property DisplayValue to check if user made the selection (in addition to the ListIndex)?

I think I normally check value or displayvalue.