private void loadreport() { { cn.Open(); SqlDataAdapter da = new SqlDataAdapter("select * from [MyTable1] where (Number LIKE '" + DropDownList1.Text + "') ", cn); da.Fill(ds); cn.Close(); { { cn1.Open(); SqlDataAdapter da1 = new SqlDataAdapter("select * from [MyTable2] where (No LIKE '" + DropDownList1.Text + "') ", cn1); //DataTable ds1 = new DataTable(); da1.Fill(ds1); cn1.Close(); } rdoc.Database.Tables[0].SetDataSource(ds); rdoc.Database.Tables[1].SetDataSource(ds1); InvoiceReport.ReportSource = rdoc; InvoiceReport.DataBind(); }