Question : Expression Builder in MS ACCESS

I am looking for help on MS Access Expression Builder in a report.  In the Group Footer Section of a report I am trying to count only where the field I am counting on = a certain vallue. Any Suggestions???

Answer : Expression Builder in MS ACCESS

in the group footer section, try

=sum(iif([your filed]=value,1,0))

Of course, you will need to replace [your field] with the field name and value with the value to test (don't forget the " if it is a string)