>>>I’ve got a form (part of a formset) in VFP5 under WinNT3.51. Things start out with the focus set to a textbox - based on the textbox input, I want several other controls on the form to have their values changed programmatically.
>>>
>>>The *problem* is that if I leave the textbox by clicking on another control, everything works fine, but if I leave by pressing TAB, not all other controls get updated.
>>>
>>>In particular, I’ve got a combobox with a SQL rowsourcetype that I’m trying to set the value of. There’s a line in the Valid code of the textbox that’s close enough to:
>>>thisform.cboMainLite.Value = cNewMLValue
>>>
>>>Again, this works FINE if I click to another control, but fails if I leave the textbox by tabbing (all other things being, as far as I can tell, equal). By failing I mean that the combobox displays nothing - although the debugger says that the Value *and* DisplayValue properties are what they should be. Forcing a form Refresh doesn’t seem to help.
>>>
>>>Any replies greatly appreciated!
>>>-dan rochman
>>Will it make any difference in your case if you try to set DisplayValue instead of Value?
>
>Yes. It's really elusive thing. Sometimes Value works but sometimes DisplayValue programmatic setting is required too. Also I see that the most reliable RowSourse is a cursor alias.

I tried setting the Value *and* DisplayValue properties - no luck.
The oddest part is that setting *just* the Value property suffices *if* I leave the control by clicking on some other control. If I leave by pressing TAB, it doesn't work...

I turned event tracking on in the debugger... Can anyone tell me why, if I leave a control via TAB, I get a KeyPress(4, 0) event generated in the next control in the tab order? And then a KeyPress (19, 0) event in the control after that!! All I hit was TAB! Strange things are afoot.

Thanks to Nick/Edward for the replies, though,
-dan