Report Parameter

Hello,

i need help please

I want a report parameter in my report.
I have a dataset, which has 3 columns. An id, a name and test_id.
Now in the Report parameter is "select value column" id and my display text is "dataSetRow["name"] + dataSetRow["id"].

How can i usw now the test_id?

param[name].value and param[name].displayText is not what i want.

I need something like param[name].value(test_id) or something like that...

Has someone an idea?

Thanks and regards
Benni