Hi!

I am having trouble creating a Calulated ControlSource for a TextBox on a Form.

When I specify an expression as the ControlSource of the TextBox I get an error "The data source for this object must be a variable reference"

e.g. ThisForm.TxtFileName.ControlSource = "juststem(filename) + '.'+ justext(filename)" where filename is a memo field.

I have tried a few different ways but none of them seem to work.

Thanks in advance.

Sarosh