hi , i have a variable named sumClient of Calculation Type = count , i want to count the number of client in My report basing on Boolean variable CL, so i have put in the variable Expression of the variable sumClient this code : ($F{CL}.booleanValue()== true)?1:0 but this is returning all the number of client that i have in the report even if CL =false. NB : in my Report i'm generating a table basing on a List of bean ressource. could you help me please , Thank you