Changing a fields backgroung 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

I never attempted this on a per cell basis but it should work;
Create a function in the code section, something like this...
function getColor(s1 as string, s2 as string) as String
getColor = iif((s1 <> s2), "Red", "White")
end function
then call the function from your textbox like this...
<BackgroundColor>=Code.getColor(Fields!act_shp_dt.Value , Fields!prm_shp_dt.Value )</BackgroundColor>
|||you code seems fine but make sure you use the colors you want to show:
=iif(Fields!act_shp_dt.Value <> Fields!prm_shp_dt.Value , " <some_color>","<some_color>")