private void cbxMaKH_SelectedIndexChanged(object sender, EventArgs e) { if (cbxMaKH.Text != "") { txtTenKH.Text = BLL.showTenTheoMaKH(cbxMaKH.Text); } }
private void cbxMaKH_SelectedIndexChanged(object sender, EventArgs e) { if (cbxMaKH.Text == "") { txtTenKH.Text = ""; txtDiaChi.Text = ""; } txtTenKH.Text = BLL.showTenTheoMaKH(cbxMaKH.Text); txtDiaChi.Text = BLL.showDiaChiTheoMaKH(cbxMaKH.Text); txtDienThoai.Text = BLL.showDienThoaiTheoMaKH(cbxMaKH.Text); LoadDataGridView(); //if (BLL.showTongTienTheoMaKH(cbxMaKH.Text, DateTime.Parse(dtpNgayXuat.Text)) == "") //{ // txtTongTien.Text = "0"; //} //else // txtTongTien.Text = BLL.showTongTienTheoMaKH(cbxMaKH.Text, DateTime.Parse(dtpNgayXuat.Text)); }