ireport printWhenExpression in list data (subdata)

[rlxodus1]

Hi.

First, I am Korean. So I don't kow english well. I hope you understand.

 

I want to remove or hide StaticText(Text Field)..

I know, It can through "PrintWhenExpression". But I know only 'Main'Parameters, 'Main'Fileds and subreport.

I want to remove or hide throught subdata(data in list).

 

Finally(Eventually), I want to hide through field's data in list(empty)

Meanwhile, field names in List are $F{title}, $F{content}, etc.

I try it "<printWhenExpression><![CDATA[$F{title} != null && $F{title}.trim().length>0]]></printWhenExpression>" And Report Problems Window message "Field not found : title"

 

If you know "printWhenExpression" through field's data in list, please tell me....!

[Sheng.Maud]

check the subreport, make sure you have added the fields.