DataSet ds2 = new DataSet();
d = "select id as [ایندکس],name as [نام کتاب],nevisandeh as [نام نویسنده],safahat as [صفحات],onvan as [عنوان],zaban as [زبان],arch as [شماره] from risiver";
adap = new OleDbDataAdapter(d, con);
adap.Fill(ds2, "risiver");
stiReport2.RegData(ds2);
stiReport2.Show();