partial void DeleteTHU_CHI(THU_CHI instance);
 partial void InsertTHU_CHI(THU_CHI instance);
 partial void UpdateTHU_CHI(THU_CHI instance);
        private void bbiLuu_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
        {
            if (!Kiem_Tra())
            {
                return;
            }

            try
            {
                if (tinh_trang == "them")
                {
                    THU_CHI thuchi = new THU_CHI();

                    thuchi.Ma_Chung_Tu = txtMaChungTu.Text;
                    thuchi.Ngay = txtNgay.DateTime;
                    thuchi.Ma_Khach_Hang = string.IsNullOrEmpty(txtKhachHang.Text) ? "" : txtKhachHang.EditValue.ToString();
                    thuchi.Ten_Khach_Hang = txtKhachHang.Text;
                    thuchi.Dia_Chi = txtDiaChi.Text;
                    thuchi.So_Tien = txtSoTien.Value;
                    thuchi.Ly_Do = txtLyDo.Text;
                    thuchi.Chung_Tu_Ban_Hang = txtChungTuBanHang.Text;
                    thuchi.Loai_Chung_Tu = Convert.ToInt32(txtLoaiChungTu.EditValue);
                    thuchi.Hinh_Thuc_Cong_No = Convert.ToInt32(txtHinhThucCongNo.EditValue);
                    thuchi.Ghi_Chu = txtGhiChu.Text;

                    db.THU_CHIs.InsertOnSubmit(thuchi);
                }
                else
                {
                    var thuchi = (from tc in db.THU_CHIs
                                  where tc.Ma_Chung_Tu == txtMaChungTu.Text
                                  select tc).FirstOrDefault();

                    thuchi.Ma_Chung_Tu = txtMaChungTu.Text;
                    thuchi.Ngay = txtNgay.DateTime;
                    thuchi.Ma_Khach_Hang = string.IsNullOrEmpty(txtKhachHang.Text) ? "" : txtKhachHang.EditValue.ToString();
                    thuchi.Ten_Khach_Hang = txtKhachHang.Text;
                    thuchi.Dia_Chi = txtDiaChi.Text;
                    thuchi.So_Tien = txtSoTien.Value;
                    thuchi.Ly_Do = txtLyDo.Text;
                    thuchi.Chung_Tu_Ban_Hang = txtChungTuBanHang.Text;
                    thuchi.Loai_Chung_Tu = Convert.ToInt32(txtLoaiChungTu.EditValue);
                    thuchi.Hinh_Thuc_Cong_No = Convert.ToInt32(txtHinhThucCongNo.EditValue);
                    thuchi.Ghi_Chu = txtGhiChu.Text;
                }

                db.SubmitChanges();
                RaiseReloadEventHander();
                Close();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.ToString());
            }
        }