Hello Antonio, thank you. I see the msgInfo correctly but the changes of the bmp are not visible. oCol:AddBmpHandle( FwBmpAsc() ) oCol:AddBmpHandle( FwBmpDes() ) oCol:nHeadBmpNo := 1 oCol:bLClickHeader := {|r,c,f,o| IIF( oCol:nHeadBmpNo = 2, (oCol:nHeadBmpNo := 1 ,msginfo(1)),(oCol:nHeadBmpNo ...