How to add Input Control's Selection value to Report

Hi Friends,

I am using 4 Combo boxes in input control of a webi report. How do I add the Input Control's Selection value to Report ?

For an Example My First Combo box is Country. I have used in a blank cell the below given syntax but what happen when there is a value contain 0 ?

I used

=If (Count([Country])) >1 Then "All" Else [Country]