protected void Button_submit_Click(object sender, EventArgs e) { SqlFuns sf = new SqlFuns(); Payment tmp = new Payment(); tmp.Stnum = uint.Parse(DropDownList_stu.SelectedValue); tmp.Payfor = ushort.Parse(DropDownList_pf.SelectedValue); tmp.Fee = double.Parse(TextBox_fee.Text); tmp.Paydt = DateTime.Now; int result = sf.AddPayment(tmp); if (result > 0) { Response.Write("<script language='javascript'>alert('Success!!!');</script>"); } else { Response.Write("<script language='javascript'>alert('Failed!!!');</script>"); } }