DataSet ds=new DataSet();
                 da.Fill(ds,"asd");
                 PagedDataSource objpage=new PagedDataSource();
                 objpage.DataSource=ds.Tables[0].DefaultView;
                 objpage.AllowPaging=true;
                 objpage.PageSize=11;
                int TotalRecord=ds.Tables[0].Rows.Count;
                int pagecount=(TotalRecord+objpage.PageSize-1)/objpage.PageSize;
                int curr;
                if(Request.QueryString["page"]!=null)
                ...{
                     curr=int.Parse(Request.QueryString["page"]);
                 }
                else
                ...{
                     curr=1;
                 }
                 objpage.CurrentPageIndex=curr-1;
                if(!objpage.IsFirstPage)
                ...{
                    this.lnkprv.NavigateUrl=Request.CurrentExecutionFilePath+"?page="+Convert.ToString(curr-1);
<