Hi James.

Problem: When I select an item from a list in a dropdown combobox - the display value goes blank. But, this only happens when the value to be returned from the combobox is a negative value.

This one is a known issue. Check out MSDN:

PRB: Negative Numbers Do Not Display in a Combo Box

Q190267


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The information in this article applies to:

Microsoft Visual FoxPro for Windows, versions 5.0, 5.0a, 6.0

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SYMPTOMS
If a combo box has the RowSourceType set to SQL Statement and the BoundTo property is set to true, negative numeric values do not display in the combo box.