Report parameter variable in SSRS 2008 R2

Refer the below link. Dynamic Grouping in SSRS.

http://blogs.msdn.com/b/chrishays/archive/2004/07/15/dynamicgrouping.aspx

http://www.codeproject.com/Articles/15055/Dynamic-Data-Grouping-using-Microsoft-Reporting-Se

---

Regards, RSingh