I have followed the instructions here http://javanetspeed.blogspot.com/2013/02/more-ireport-tip-and-tricks.html to have alternate stripped data (detail block) rows, but it does not work. Every row becomes colored. I am using ireport 5.5.0 This technique uses the conditional style of $V{REPORT_COUNT}.intValue() % 2 == 0 I noticed it uses the REPORT_COUNT parameter but this is not listed in the parameters list of the report. What am I doing wrong?