I am having two input for dates as below & want to set alert for that
Alert:- If difference between StartDate & EndDate is more than 6 months,it must generate alert / prompt panel showing text "Month Period exceed than 6", & report should not proceed.further, untill & unless the user select dates between any six months.
I'm not sure that relative dates will be useful here, if you just need to do checking on the values of the input controls, you can add your logic and alerts by customizing the input control rendering, Check Chapter 11 (11.6.1) if the JasperReports Server Ultimate Guide http://community.jaspersoft.com/documentation
In Jaspersoft 5.0 there is relative dates feature added, So that may be help you I am not use this feature yet, so if possible then let me know how you do that.
If you want to raise enhancement request then go to TRACKER option on community.
1. Create new bug report.
2. Select categary of the bug either feature request or Enhancement request.
and select monitor option.