Ignore header without information

[drfever]

I would like to have three headers, first-manufactuer and second -size and third - color.

I want the manufactuers to be grouped together regardless if color is blank. Currently, I have two groupings for each manuf. One with color and the other blank.

How can I have my report ignore the color header when entries are blank and group them under the same size header and separate them when color is available?

 

[Rich]

If IsNull(Me.MyField) Then
Me.Section(Whatever).Visible=False
Else
Me.Section(Whatever).Visible=True
End If