private void btnThemNV_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e) { try { NhaCungCapInfo nv = new NhaCungCapInfo(txtMaNCC.Text, txtTenNCC.Text, txtDiaChi.Text, txtFax.Text, txtEmail.Text, txtDienThoai.Text, txtGhiChu.Text); BUS_NHACUNGCAP.Them_NCC(nv); DialogResult dr = MessageBox.Show("Thêm thành công"); if (dr == DialogResult.OK) { loaddata(); } } catch (Exception ex) { MessageBox.Show("Lỗi" + ex.ToString()); } }