Changing a field background color IIF.....

Hi All,
I need to change the backgroung color to a field in the background property....

=iif(Fields!act_shp_dt.Value <> Fields!prm_shp_dt.Value , " Late ","")

This is the field and I want it to change color if the statement is true. Can anyone help?

Thank you in advanced, Kerrie

You have a misunderstand.
You should put a label or something like that and in the backgroud propertie put the expression.
=iif(Fields!act_shp_dt.Value <> Fields!prm_shp_dt.Value , "Blue","Red")
That's all|||Thank You so much for your help. That did it!!!