Get computed data for use later...

[cschalk]

Ok, I am new to iReport / Jasper, but I've found a lot of help on this website.  I do have a question though.

 

I've got a text field which computes a value of other fields like this:

        new Integer($F{input1}.intValue() + $F{input2}.intValue())

My question is this: If I want to use this value later in another Text Field, How do I access it's computed value.

 

I've tried assigning a key (called it "computedTotal") but when I use str(<key>), it doesn't allow me to use this value.  Is this even possible?

 

Thanks,

Chris

 

 

[svenn]

You could create a variable with that calculation. A lot depends on what you are trying to do with this value.

[cschalk]

I need the data stored so that I can use it somewhere else.  I have been looking at variables, but I don't know how to add my own.

in the Expression Builder, it has 5 pre-defined variables.  How do I add my own to that list?

Thanks!

[svenn]

I'm on version 1.3.3 so it might be different on a new version

1. Go to

View -> Variables

2. Chose new

3. Enter you data

You now be able to access your vaiable from the selection list

 

 

[cschalk]

wow, they've really changed things... I finally found it! In version 3.1.4 you can define variables in the Report Inspector.  Right Click on Variables and choose "Add Variable"..... because, that's the first place I would look to define a variable.

 

Thank you... I'll see if I can get things to agree!

 

(Jasper is wicked cool, and very feature rich - - therefore it's very hard to understand and kinda headache inducing!)

Post Edited by Chris Schalk at 03/11/09 16:50