> I have a usability concern between the 2 controls. The LookupCombo
> allows the user to hit 'DEL' which clears-out the field, but the
> ComboBox does not.
> This is confusing to the user since the user doesn't know (or care)
> that the list has been generated at static-time or runtime. To the
> user, both controls look the same and therefore the same functions
> should apply to both.

I agree 100%!

TIB_ComboBox is based on the Windows API combobox. As such it is
forced to operate in that manner. There are many other
inconsistencies with the API combobox (control sizing problems,
incremental search only operates with one character etc). You could
try adding a blank option to the Items.

If you want a combobox control that is more flexible and consistent
(all IMHO of course :-) then try out my enhanced components.
TIB_ComboBoxEnh is based on my CustomEditEnh class and does not use
the windows API combobox at all.

http://www.telesiscomputing.com.au/enhcomp.htm


--
Geoff Worboys
Telesis Computing