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Set a global variable using report parameter [message #820661]

Wed, 14 March 2012 12:03

ing omini

Messages: 26
Registered: March 2012

Junior Member

I want to read a report parameter and, basing on its value, create some derived variables to be put in the report context:

reportContext.setGlobalVariable("global_refdate", params["refdate"].value);

The final goal is to use these variables inside dynamic text elements, report header/footer, ...

The problem is that I can't understand where to put the script, because I don't know when the parameter is evaluated (and not null) during the report generation.

I've put it in many event handler scripts of the report element:

initialize
before factory
after factory

but the global variable is always null when I'm trying to use it with:

reportContext.getPersistentGlobalVariable("global_refdate");

Can someone help me, please?
Thanks in advance...

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Re: Set a global variable using report parameter [message #820768 is a reply to message #820661]

Wed, 14 March 2012 14:47

ing omini

Messages: 26
Registered: March 2012

Junior Member

A friend suggested me the solution: I was not setting the variable as "Persistent".

WRONG --> reportContext.setGlobalVariable("global_refdate", params["refdate"].value);
CORRECT --> reportContext.setPersistentGlobalVariable("global_refdate", params["refdate"].value);

Now it seems working, by putting the script in the initialize event handler of report component.

Thanks anyway...

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Re: Set a global variable using report parameter [message #821037 is a reply to message #820661]

Wed, 14 March 2012 21:35

Jason Weathersby

Messages: 9167
Registered: July 2009

Senior Member

The beforeFactory is ideal. Are you setting global variable like:
setPersistentGlobalVariable or using setGlobalVariable?
the get must match.

Jason

On 3/14/2012 8:03 AM, ing omini wrote:
> I want to read a report parameter and, basing on its value, create some
> derived variables to be put in the report context:
>
> reportContext.setGlobalVariable("global_refdate", params["refdate"].value);
>
> The final goal is to use these variables inside dynamic text elements,
> report header/footer, ...
>
> The problem is that I can't understand where to put the script, because
> I don't know when the parameter is evaluated (and not null) during the
> report generation.
>
> I've put it in many event handler scripts of the report element:
>
> initialize
> before factory
> after factory
>
> but the global variable is always null when I'm trying to use it with:
>
> reportContext.getPersistentGlobalVariable("global_refdate");
>
>
> Can someone help me, please?
> Thanks in advance...
>

Report message to a moderator