andogates

Thank's dipesh.bhavsar, but sorry, i not really understand about step number 3,, for examples, i have one variable with name 'vData', and i print that in my first text field (set vData in Text Field Expression), and then i want changed or increment vData value when my second text field printed, so i think i must assign that's statement/logic (for changed vData value) in second text field in 'Text Field Expression',, like this : $V{vData}.setValue(3); the main problem is how syntax to setValue variable in some condition.. sorry for my bad explanation,

Hi, i new to user Jasper report, as long as in know, to set variable value we must declare that on Variable Expression, but if like that i must know the pattern of my variable value in advance.. the problem is the value is depending on some condition which we know after that condition printed. So difficult for me to set my variable expression/value in "Variable Expression".. http://community.jaspersoft.com/sites/all/libraries/ckeditor/plugins/smiley/images/sad_smile.gif Can we set/change value of variable except in Variable Expression statement?? For example in "Text Field Expression" maybe,,,