Question : access 2003: sum of textboxes

This should be straight forward but it just does not work for me...????

Sum of three textbox values into a 4th total box.
Have
textboxtotal.value = sum(textbox1.value + textbox2.value + textbox3.value)
I normally get the total box showing all three values separately instead of adding them up.

Answer : access 2003: sum of textboxes

OH ... that is a Control Source expression, not in code?

If so, then sum would work ....

And to be sure:

=sum(CSng([textbox1]) + CSng([textbox2])  + CSng([textbox2]) )

mx