protected void BindGridViewCollectionData()
        {
            string  FromDate  = txtFromDate.Text;
            string  ToDate    = txtToDate.Text;
            string  condition = string.Empty;
            DataSet ds        = new DataSet();

            string Stateid   = App_Code.Global.GetSelectState(ref lstState, false);
            string siteid    = App_Code.Global.GetSelectState(ref lstSiteId, false);
            string CustGroup = App_Code.Global.GetSelectState(ref lstCustGroup, false);
            string BuList    = App_Code.Global.GetSelectBUList(ref lstbu, false);
            string CustList  = App_Code.Global.GetSelectCustMaster(ref lstCust, false);
            string strQuery  = "EXEC USP_GETVRSSPDISCOUNTREPORT '" + Stateid + "','" + siteid + "','" + BuList + "','" + CustGroup + "','" + CustList + "','" + Session["USERID"].ToString() + "','" + Session["LOGINTYPE"].ToString() + "','" + FromDate + "','" + ToDate + "' ";

            ds = baseObj.GetDsData(strQuery);
            if (ds.Tables.Count > 0)
            {
                gvDetails.DataSource = ds.Tables[0];
                gvDetails.DataBind();
                grdSummary.DataSource = ds.Tables[1];
                grdSummary.DataBind();
            }
        }