private void DatPhong_Load(object sender, EventArgs e)
{
ComboBoxPhong.DataSource = phong.getDatPhong();
ComboBoxPhong.DisplayMember = "TenPhong";
ComboBoxPhong.ValueMember = "MaPhong";
ComboBoxPhong.SelectedItem = null;
}
private void ThongTinPhong_Load(object sender, EventArgs e)
{
Phong phong = new Phong();
SqlCommand command = new SqlCommand("Select * from ChiTietPhong ");
dataGridView1.ReadOnly = true;
dataGridView1.DataSource = phong.getshowkh(command);
dataGridView1.AllowUserToAddRows = false;
comboBoxRoomName.DataSource = phong.getDatPhong();
comboBoxRoomName.DisplayMember = "TenPhong";
comboBoxRoomName.ValueMember = "MaPhong";
comboBoxRoomName.SelectedItem = null;
}