referencing data entered on javascript form

i have a javascript form on a report and i would like to reference the value entered into that form in an expression. For example the user enters a value into the form then clicks on a drill-through to another report where a parameter is mapped to the form value via an expression. Does anyone know how to do this?

A simple example is attached. How can I get the value entered into the inst_cd form to show up in the expression?

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mwilliams

Hi shepherr,

What version of BIRT are you using?

shepherr

Michael,
We are using 2.3.1.v20080922-1151...
Thanks!
Richard

alex520

I think you should submit this form to a servlet , there is no birt element in your report desing file.

shepherr

I don't know what you mean by 'there is no birt element in your report desing file' - or using a servlet for that matter... are you thinking something is missing form the birt report?

bhanley

Please see the attached sample. I updated your copy of the report to be functional. The first issue is that you cannot update the contents of a Label control. Those are locked after render. I switched the control over to a Text control and simply added a DIV. Then I was able to easily update the contents of the DIV from Javascript when the button is clicked.

Hope this helps keep you moving. I am not sure what you are ultimately trying to accomplish here. There are a lot of great and easy ways to manipulate text on the report without resorting to Javascript. This will work and is totally supported, but if you give me a better idea what your ultimate goal is there might be a more elegant solution.

Good Luck!

shepherr

Thanks very much! To go a little further into what I'm trying to do, I would like to reference this value from expressions so I could use it for a variety of things. But primarily I want to be able to pass this value to another report in a drill-through. I was thinking that since expressions are available to use this would be the best way to pass the enetered value as a parameter but as you say there are many ways to aproach things. So - bottom line I want to have the use enter a value in the report and have that value passed as a parameter in a drill through. Any suggestions would be very much welcome.
Thanks!