private int TongTien(DanhSachHangHoa a)
{
int max = int.MinValue;
foreach (var item in a.dshh)
{
if (!dsten.Contains(item.TenHang))
{
dsten.Add(item.TenHang);
}
}
foreach (var item in dsten)
{
int Tong = 0;
foreach (var i in a.dshh)
{
if (item.CompareTo(i.TenHang) == 0)
{
Tong += i.ThanhTien();
}
}
if (Tong > max)
{
max = Tong;
}
}
return(max);
}
public DanhSachHangHoa TimDSMatHangX(DanhSachHangHoa a, string ten)
{
DanhSachHangHoa kq = new DanhSachHangHoa();
kq.dshh = a.dshh.FindAll(x => x.TenHang == ten).ToList();
return(kq);
}
public DanhSachHangHoa InDSHHSLMuoi(DanhSachHangHoa a)
{
DanhSachHangHoa kq = new DanhSachHangHoa();
kq.dshh = a.dshh.Where(x => x.SoLuong >= 10).ToList();
return(kq);
}
public DanhSachHangHoa TimDSTaiNghe(DanhSachHangHoa a)
{
DanhSachHangHoa kq = new DanhSachHangHoa();
kq.dshh = a.dshh.Where(x => x.TenHang == "TAI NGHE").ToList();
return(kq);
}
public DanhSachHangHoa TimMatHangThanhTienMax(DanhSachHangHoa a)
{
DanhSachHangHoa kq = new DanhSachHangHoa();
int max = a.dshh.Max(x => x.ThanhTien());
kq.dshh = a.dshh.Where(x => x.ThanhTien() == max).ToList();
return(kq);
}
public void XoaHangHoaX(DanhSachHangHoa a, string ten)
{
DanhSachHangHoa ds = new DanhSachHangHoa();
ds.dshh = a.dshh.FindAll(x => x.MoTa == ten).ToList();
foreach (var item in ds.dshh)
{
a.Xoa(item);
}
}
public DanhSachHangHoa TimSoTienMaxMHX(DanhSachHangHoa a, string ten)
{
DanhSachHangHoa ds = new DanhSachHangHoa();
ds = TimDSMatHangX(a, ten);
int max = ds.dshh.Max(x => x.ThanhTien());
DanhSachHangHoa kq = new DanhSachHangHoa();
kq.dshh = a.dshh.Where(x => x.ThanhTien() == max).ToList();
return(kq);
}
public void TimMHTongTienMax(DanhSachHangHoa a)
{
int max = TongTien(a);
DanhSachHangHoa kq = new DanhSachHangHoa();
foreach (var item in dsten)
{
int Tong = 0;
foreach (var i in a.dshh)
{
if (item.CompareTo(i.TenHang) == 0)
{
Tong += i.ThanhTien();
}
}
if (Tong == max)
{
Console.WriteLine("Mat hang co tong so tien nhieu nhat la : " + item + " voi tong so tien la: $" + Tong);
}
}
}
static void Main(string[] args)
{
DanhSachHangHoa DSHH = new DanhSachHangHoa();
QuanLyHangHoa ql = new QuanLyHangHoa();
while (true)
{
Console.Clear();
Console.WriteLine("====================== DANH SACH CHUC NANG ======================");
Console.WriteLine("Nhap {0} de Thoat", (int)Menu.Thoat);
Console.WriteLine("Nhap {0} de Nhap du lieu tu file", (int)Menu.NhapTuFile);
Console.WriteLine("Nhap {0} de Xuat file du lieu", (int)Menu.Xuat);
Console.WriteLine("Nhap {0} de In danh sach mat hang co so luong tren 10", (int)Menu.InDSMHSLTren10);
Console.WriteLine("Nhap {0} de In danh sach mat hang co ten la TAI NGHE", (int)Menu.XuatDSTaiNghe);
Console.WriteLine("Nhap {0} de Tim mat hang co tong so tien cao nhat", (int)Menu.TimMatHangCoTongTienCaoNhat);
Console.WriteLine("Nhap {0} de Mat Hang co Thanh Tien cao nhat", (int)Menu.MatHangThanhTienMax);
Console.WriteLine("Nhap {0} de Tim gia lon nhat cua mat hang X", (int)Menu.TimMaxMatHangX);
Console.WriteLine("Nhap {0} de Sap xep", (int)Menu.SapXep);
Console.WriteLine("Nhap {0} de xoa hang hoa co mo ta X", (int)Menu.XoaHangHoaMoTaX);
Menu nhap = (Menu)int.Parse(Console.ReadLine());
switch (nhap)
{
case Menu.Thoat:
return;
case Menu.NhapTuFile:
{
Console.Clear();
DSHH.NhapThuFile();
DSHH.Xuat();
}
break;
case Menu.Xuat:
{
Console.Clear();
DSHH.Xuat();
}
break;
case Menu.InDSMHSLTren10:
{
Console.Clear();
ql.InDSHHSLMuoi(DSHH).Xuat();
}
break;
case Menu.XuatDSTaiNghe:
{
Console.Clear();
ql.TimDSTaiNghe(DSHH).Xuat();
}
break;
case Menu.TimMatHangCoTongTienCaoNhat:
{
Console.Clear();
ql.TimMHTongTienMax(DSHH);
} break;
case Menu.MatHangThanhTienMax:
{
Console.Clear();
ql.TimMatHangThanhTienMax(DSHH).Xuat();
} break;
case Menu.TimMaxMatHangX:
{
Console.Clear();
while (true)
{
Console.WriteLine("Xin moi nhap ten hang hoa gom (MAY TINH, QUAN AO, GIAY, TAI NGHE)");
string ten = Console.ReadLine();
try
{
ql.TimDSMatHangX(DSHH, ten).Xuat();
Console.WriteLine("Hang hoa Thanh tien cao nhat mat hang {0} la: ", ten + "\n");
ql.TimSoTienMaxMHX(DSHH, ten).Xuat();
break;
}
catch
{
Console.WriteLine("Mat hang vua nhap khong ton tai, xin moi nhap lai!!");
}
}
} break;
case Menu.SapXep:
{
Console.Clear();
Console.WriteLine("Nhap {0} de Sap xep tang theo thanh tien!", (int)sort.TangTheoTien);
Console.WriteLine("Nhap {0} de Sap xep giam theo thanh tien!", (int)sort.GianTheoTien);
Console.WriteLine("Nhap {0} de Sap xep tang theo so luong", (int)sort.TangSL);
Console.WriteLine("Nhap {0} de sap xep tang theo ten", (int)sort.SapXepTangTen);
Console.WriteLine("Nhap {0} de Sap xep tang theo chieu dai ten", (int)sort.SapXepTangTheoChieuDaiTen);
sort n = (sort)int.Parse(Console.ReadLine());
switch (n)
{
case sort.TangTheoTien:
{
Console.Clear();
ql.SapXep(DSHH).Xuat();
}
break;
case sort.GianTheoTien:
{
Console.Clear();
ql.SapXepGiam(DSHH).Xuat();
}
break;
case sort.TangSL:
{
Console.Clear();
ql.SapXepTangSL(DSHH).Xuat();
} break;
case sort.SapXepTangTen:
{
Console.Clear();
ql.SapXepTheoTen(DSHH).Xuat();
} break;
case sort.SapXepTangTheoChieuDaiTen:
{
Console.Clear();
ql.SapXepTangChieuDaiTen(DSHH).Xuat();
} break;
default:
break;
}
} break;
case Menu.XoaHangHoaMoTaX:
{
Console.Clear();
DSHH.Xuat();
string ten;
Console.WriteLine("Xin moi nhap ten hang hoa: ");
ten = Console.ReadLine();
ql.XoaHangHoaX(DSHH, ten);
DSHH.Xuat();
} break;
default:
break;
}
Console.ReadLine();
}
Console.ReadLine();
}
public DanhSachHangHoa SapXepTangChieuDaiTen(DanhSachHangHoa a)
{
a.dshh.Sort((x, y) => x.MoTa.Length.CompareTo(y.MoTa.Length));
return(a);
}
public DanhSachHangHoa SapXepTheoTen(DanhSachHangHoa a)
{
a.dshh.Sort((x, y) => x.MoTa.CompareTo(y.MoTa));
return(a);
}
public DanhSachHangHoa SapXepTangSL(DanhSachHangHoa a)
{
a.dshh.Sort((x, y) => x.SoLuong.CompareTo(y.SoLuong));
return(a);
}
public DanhSachHangHoa SapXepGiam(DanhSachHangHoa a)
{
a.dshh.Sort((x, y) => y.ThanhTien().CompareTo(x.ThanhTien()));
return(a);
}