Parameter for the library

Hi,

SSRS 2008 R2 Question

I have a SQL Statment in a dataset that requires different library's Based on the warehouse that is picked at run time is it possible to use a Parameter for the library?

I have tried this way but it isn't working, what are my options in order to pick the correct Library? Note I have to use ? because I’m using Iseries as400 which won’t allow naming parameters.

Example:

? =Parameters!Lib.Value

Select Col1,Col2
From ?.Table1

Thanks for your help, Mike