how to do java counter i++ in iReport

问题:

i want to do counter variable, im using ireport 3.4.2

in java we can simply do like i++ to increament. how can i do t in iReport?

回答1:

$V{variable1}++ is absolutely legal in iReport, as long as variable1 is Integer and the Calculation is Count or Incremental Count

回答2:

The above answer might be right also, but i didnt tried it. I try to created variable and set the calculation field "count" and then set the variable expression correctly based counter factor. it works.