protected void Button1_Click(object sender, EventArgs e) { try { bl.stu_name = dwd_stu.SelectedItem.Text; bl.vat_1 = txt_nm.Text; bl.vate = txt_tax.Text; if (txt_add_vat.Text != string.Empty) { bl.vat_2 = txt_add_vat.Text; } else { bl.vat_2 = " "; } bl.apppli_dt = txt_date.Text; dl.inset_statutory(bl); dl.slelct_stu_id(bl); ScriptManager.RegisterStartupScript(this, this.GetType(), "redirect", "alert('Insert successfully'); window.location='add_satutary.aspx';", true); } catch { } }