How to make an addition of variables into another variable

[atuin]

I'm sure this is possible, but I can't find a way to do it.

 

I have many variables who came from sub-reports, defined like this :

variable class : integer

calculation : system

reset type : none

increment type : none

 

I want to make a sum for some of these variables, by example : $V{nb1}.plus($V{nb2}).plus($V{nb8}) It works great if I do this into a textfield, but not if I want to put it in a variable (lets call it sum1).

 

property of the variable :

variable class : integer

calculation : system

reset type : report

increment type : none

Like this, I obtain the initial value expression. If I set reset type as none, I obtain null.

 

The textfield containing my variable sum1 is at "evaluation time : report"

 

So, my variable sum1 is calculated before nb1,nb2 and nb8 are. I don't know what to do next...

 

Can somebody help me?

[rubamushtaq]

Hi, 

You can easily take sum of one variable into another variable like take a varible of name "Sum" with following specifications.

Name: Sum

Variable class: Integer

Calculation : Nothing

Reset Type: Report

Incerement Type : None

Variable Expression : $V{nb1}+($V{nb2}) + $V{nb8}) 

 

I hope that may resolve your problem.

 

 

[atuin]

Hi, thanks for your reply, unfortunately, I still obtain null.

[rubamushtaq]

Then take a text field and set text field expression "Sum"(your variable) and set the text field evaluation time.

[atuin]

... I'm not sure if I don't understand you, or if you tell me to do what I already did : "The textfield containing my variable sum1 is at "evaluation time : report"

Of course I tried every possible evaluation time!

[rubamushtaq]

You are right you have already done it,I could not remember it.Anyhow the solution is working fine as I run it. I would recommend you to check the classes of your variables and make sure that they all are types of integer and also make sure that you have not coming null values in it from the database. Beacuse the above specifiatons should work when the correct data is present.