not sure to what or whom you're referring to.
As an afterthought, I use a custom function in a standard module to test for Null or empty strings in controls because I can call it from anywhere in the project. The call would be like
Code:
If IsNullEmpty(ctl) And ctl.Tag = "required" Then...
or
Code:
If ctl.Tag = "required" Then
If IsNullEmpty(ctl) Then
the difference being that the function is not being called if the tag is not set.
The function is
Code:
Public Function IsNullEmpty(ctl As Control) As Boolean
IsNullEmpty = False
If IsNull(ctl) Or ctl = "" Then IsNullEmpty = True
End Function