public void HuyHoatDong()
{
var thongBaoMoi = ThongBaoHoatDong.TaoThongBaoHuy(this);
foreach (var sinhVien in DanhSachSinhVienTheoDoi.Select(td => td.SinhVien))
{
sinhVien.ThongBaoHoatDong(thongBaoMoi);
}
SinhVienTaoHd.ThongBaoHoatDong(thongBaoMoi);
BiHuy = true;
DuocPheDuyet = true;
DanhSachSinhVienThamGia.Clear();
DanhSachSinhVienTheoDoi.Clear();
DanhSachChuongTrinhHoatDong.Clear();
SoLuotThamGia = 0;
}
public void ThemLuotDangKi(ThamGiaHoatDong luotDangKi)
{
DanhSachSinhVienThamGia.Add(luotDangKi);
}
public void ThemLuotThamGia(ThamGiaHoatDong luotThamGia, SinhVien sinhVien)
{
DanhSachSinhVienThamGia.Add(luotThamGia);
sinhVien.ThongBaoHoatDong(ThongBaoHoatDong.TaoThongBaoDiemDanh(this));
SoLuotThamGia++;
}
