// Them phong moi vao vi tri thich hop, theo thu tu maphong
public void ThemPhongVoiViTriThichHop(string ma, LoaiPhong loaiphong, int succhua)
{
Phong phong = TaoPhong(ma, loaiphong, succhua);
if (phong != null)
{
listPhong.ThemThichHop(phong);
}
}
// Them phong moi vao cuoi danh sach
public void ThemPhong(string ma, LoaiPhong loaiphong, int succhua)
{
Phong phong = TaoPhong(ma, loaiphong, succhua);
if (phong != null)
{
listPhong.Add(phong);
}
}
// cai dat cho IComparable
public int CompareTo(object o)
{
Phong p = o as Phong;
if (p != null)
{
return(this.MaPhong.CompareTo(p.MaPhong));
}
throw new ArgumentException("Khong phai doi tuong kieu Phong");
}
// Ham cau tu
public DonMuonPhong(string ma, string tenNguoiMuon, string dvCongTac, Phong phongMuon,
NgayThang ngayMuon, int tietBDMuon, int tietKTMuon, bool cothaydoi = true)
{
this.ma = ma;
this.TenNguoiMuon = tenNguoiMuon;
this.DVCongTac = dvCongTac;
this.PhongMuon = phongMuon;
this.NgayMuon = ngayMuon;
this.TietBDMuon = tietBDMuon;
this.TietKTMuon = tietKTMuon;
this.CoThayDoi = cothaydoi;
}
// Tao mot phong moi tu tham so dau vao
// tuy theo loai phong ma tao doi tuong cho thich hop
private Phong TaoPhong(string ma, LoaiPhong loaiphong, int succhua)
{
Phong phong = null;
switch (loaiphong)
{
case LoaiPhong.PhongHoc:
phong = new PhongHoc(ma, succhua);
break;
case LoaiPhong.ThucHanh:
phong = new ThucHanh(ma, succhua);
break;
}
return(phong);
}
// Ham thuc hien sua thong tin mot phong
public void SuaTTMotPhong(string maphong, LoaiPhong loaiphong, int succhua)
{
Phong pMoi = null;
Phong pCu = listPhong[maphong]; // lay doi tuong phong cu
int index = listPhong.IndexOf(pCu); // lay vi tri cua phong cu trong danh sach
// tao phong moi
if (loaiphong == LoaiPhong.PhongHoc && pCu is ThucHanh)
{
pMoi = new PhongHoc(maphong, succhua);
}
else if (loaiphong == LoaiPhong.ThucHanh && pCu is PhongHoc)
{
pMoi = new ThucHanh(maphong, succhua);
}
else
{ // truong hop chi sua succhua
pCu.SucChua = succhua; // khong tao phong moi
return; // thoat khoi ham
}
listPhong.RemoveAt(index); // xoa phong cu
listPhong.Insert(index, pMoi); // chen phong moi
}