Hi, can you please write your solution..i am experiencing the same problem, i have a parameter in my main report and would like to use it in the subreport too. So, in the subreport properties window, i have added all the parameters of the main report to the subreport. Then, in the subreport, i have created a parameter with the same name and properties and thought this paramter wold know take the passed value, but it is not! The report query of the subreport encounters an error as I try to use the parameter in the query and as the parameters value is null. So, if you could please write, how you have solved your problem, it would be very helpful for me.. thx in advance, blckn size=371]http://www.jasperforge.org/components/com_joomlaboard/uploaded/images/sub.JPG