private void btnSupp_Click(object sender, EventArgs e) { GUI_ADMIN_HoTroKhachHang giaodien = new GUI_ADMIN_HoTroKhachHang(t); this.Hide(); giaodien.ShowDialog(); }
void quaylai() { GUI_ADMIN_HoTroKhachHang giaodien = new GUI_ADMIN_HoTroKhachHang(nhantaikhoan); this.Hide(); giaodien.ShowDialog(); }