Hi I developed module poole in which three field is there in the screen.and the name is 1. type 2 value 3 desc. now I want sorting by any field. suppose when I click on 'type' and then sort it should sort in type wise and similarly for 'value' and 'desc'. so I want when I will click on the any filed then I should knw that field is clicked. can any body help me. how I will solve this problem.