How to get previous JRDesignTextField's length

[benjaminliuman]

Currently, I need to generate a title like 'User name + Created on'.

If I generate it by one JRDesignTextField, like "$F{userName} + $F{createon}", the report's global timezone will not work, if I generate it by two JRDesignTextField, I can not generate it in one line, because I can not get "User name" length, if I can get its length, I can use it to set "Created on" x.

 

Below is my code:

 

JRDesignTextField userName = new JRDesignTextField();

JRDesignTextField createon = new JRDesignTextField();

userName.setExpression(new JRDesignExpression("$F{userName}"));

createon.setExpression(new JRDesignExpression("$F{createon}"));

createon.setX( "how can I get userName's length to make createon follow username");