Hi Ed,

ISNULL() Returns .F.! Vartype() would have returned 'X' otherwise. All the properties of Text2 show NULL in the locals window and (Expression could not be evaluated) in the watch window.

>>Here's something I think is weird behaviour, can anyone explain this to me.
>>Create a form in the form designer with a container on that. Put two textboxes in that container. In the init of Text2 put: Return .F. When this form is run: Vartype(THISFORM.Container1.Text2) will return "U" as expected.
>>Now put an instance of the following class on the form. In my opinion it should result in the same, but it doesn't. Vartype(THISFORM.TestBox1.Text2) result in "O", Why???
>>
>
>It started to create an Object, so VARTYPE() became "O"; it did not instantiate so it's content became NULL. I'd bet that ISNULL(thisform.TextBox1.Text2) returned .T., too.