private void LoadData()
{
/// Load danh sách khách hàng
dgvKhach.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
KhachHangBUS khBUS = new KhachHangBUS();
dgvKhach.DataSource = khBUS.DanhSachKhachHang();
///Load danh sách phòng trống
lvPhong.Items.Clear();
PhongBUS pBUS = new PhongBUS();
List <Phong> list = pBUS.DanhSachPhongTrong();
foreach (Phong p in list)
{
ListViewItem lvitem = new ListViewItem(p.Maphong);
lvitem.SubItems.Add(p.Tenphong);
lvitem.SubItems.Add(p.Giaphong.ToString());
lvitem.SubItems.Add(p.Songuoi.ToString());
lvitem.SubItems.Add(p.Tenloaiphong);
lvPhong.Items.Add(lvitem);
}
lvPhong.ItemChecked += LvPhong_ItemChecked;
}