Hide static text field when $P{} is ""

Question

I'm using iReport 4.7.1. The report contains a static field "Date Validated:" and a text field "$P{DATE_VALIDATED}" which i can confirm is "" empty. I want to hide "Date Validated: " text when $P is empty.

I have tried the following so far:

I have added the following line in the property (print when expression) of the static field which has static text "Date Validated: " :

$P{DATE_VALIDATED} == "" ? new Boolean(false) : new Boolean(true)

I also tried the following variations:

$P{DATE_VALIDATED} == "" ? "" : "Date Validated:"

$P{DATE_VALIDATED} == "" ? Boolean.FALSE : Boolean.TRUE

But static field is still showing up. I also tried putting just Boolean.FALSE to hide it completely to test and see but text is still showing up.

Answer 1

Thanks viki888 for the quick answer, that's an improvement to what i am trying to do, i'll up vote it, but the problem in my situation was i wasn't Compiling the Report after saving it, because i didn't know i had to and there isn't an obvious option/menu item or icon except tiny little hammer on the toolbar on designer window that says Compile Report... :)

So in my case compiling the report solved the problem for me. and

$P{DATE_VALIDATED} == "" ? Boolean.FALSE : Boolean.TRUE

is working fine.

Answer 2

You can try the below expression in print when condition

!$F{DATE_VALIDATED}.isEmpty() && $F{DATE_VALIDATED} != null && $F{DATE_VALIDATED} != ""

Hope this should solve your problem.