New in iReport

[richard_07]

Hello to all, recently I start work with iReport.

So, my question is: I want to evaluate a field when this is printed with respect the previous field printed. Depending the value i show it or not. I mean, for example if the value of that field is equals to the previus i dont show it. I hope that you can understand me, my english is not very good but i try to search

information in the web about my problem and i dont find any solution for that reason

it is that i ask to you.

 

Thank you very much.

[codyjasperForge]

Is this what you are asking?

You have two fields...

 

$F{f1} = value

 

$F{f2} -> Print when expression = new Boolean ($F{f2}.equals($F{f1}))

[richard_07]

In my report I print several times the same field, it is necessary so if the previous field printed is equals to the following one i dont show it (the following).

[codyjasperForge]

You could create a variable that contains the value of $F{f1} -previous.

 

Have the RESET TYPE set to Group -> Group that has group expression of $F{f1}

 

Change the evaluation time of the textfield that contains the variable, and then use the print when expression on the textfield.

 

Variable Name: previousValue

Class: (Same as $F{f1})

Reset Type: Group -> (Group Expression is $F{f1})

Calc Type: None

Initial expression: $F{f1}

Variable expression: $F{f1}

 

This or something similar to it should work...

Hope it helps...

[richard_07]

Thank you for your answers, I understand what I have to do, but you said to me:

 

"Have the RESET TYPE set to Group -> Group that has group expression of $F{f1}"

 

The problem is that I dont have any group in the report, I evaluate all the fields in the detail band. Is the same?

[codyjasperForge]

So create a group.

Just set the height of the Group Header & Group Footer to 0.

 

You need the group so that you can reset the variable.

The group expression should be the field that you want to evaluate the previous value on.

So, when that value changes, (from previous to a new value) the group resets the variable...

 

Does this make sense?

[richard_07]

It works! more or less, I will continue proving

because dont print any field but now I know how work it.

 

Thank you so much.

[redwine]

richard_07

 

Try doing this:

 

1) Right click on the text field (the one which you don't want repeating values).

2) Select properties & select the Common tab.

3) Uncheck the Print Repeated Values attribute.

 

This will suppress the printing of repeating values on your generated report.

 

 

edwin