>> Let me explain the problem more precisily: We have a form called "Global Editor". It has a combobox with fields, which could be replaced with some value, whcih a user can enter in a textbox. Now there is a problem: how can I figure out, what data type value is entered? I thought about doing this in opposite way: after user selects a field from combobox, check its type and either use appropriate InputMask or Format property or AddObject(correctFieldTypeTextBox) and Remove the previous textbox. It would be a little hassle.
>
>Nadu=ya,
>
>I would load the combo with the field name and its data type. I would not show the data type in the combo but read it from the combo. I would then use the data type to set a beginning value to the textbox so the data type of the textbox.Value would be correct. Soemthing like this in the combo's LostFocus;
>
>

>LOCAL lcType
>lcType = THIS.List(This.ListIndex,2)
>DO CASE
>   CASE lcType = "C"
>      This.Parent.Text1.Value = ""
>   CASE lcType $ "NFYI"
>      This.Parent.Text1.Value = 0
>   CASE lcType $ "DT"
>      This.Parent.Text1.Value = {}
>   CASE lcType = "L"
>      This.Parent.Text1.Value = .F.
>...
>ENDCASE

Hi Jim,

I thought the same as you suggested, but here is a problem: Once assigned textbox value, say, 0, could not be changed to {} after all, right? Therefore the combobox could be used just once, not for multiple replaces... This was my original concern, that's why I was thinking about RemoveObject() and NewObject()... But if my above assumption is wrong and a textbox could change its data type on the fly, the solution would be exactly as you described.

Thanks for your help.