public bool DeleteCTHopDong(string soHopDong, string maSP)
{
try
{
ChiTietHopDong cthd = context.ChiTietHopDong.Single(s => s.SoHopDong.Equals(soHopDong) && s.MaSP.Equals(maSP));
context.ChiTietHopDong.Remove(cthd);
context.SaveChanges();
return(true);
}
catch
{
return(false);
}
}
public bool UpdateCTHopDong(string soHopDong, string maSP, int soLuong, decimal?donGia)
{
try
{
ChiTietHopDong cthd = context.ChiTietHopDong.Single(s => s.SoHopDong.Equals(soHopDong) && s.MaSP.Equals(maSP));
cthd.SoLuong = soLuong;
cthd.DonGia = donGia;
context.SaveChanges();
return(true);
}
catch
{
return(false);
}
}
public bool InsertCTHopDong(ref string err, string soHopDong, string maSP, int soLuong, decimal?donGia)
{
try
{
ChiTietHopDong cthd = new ChiTietHopDong
{
SoHopDong = soHopDong,
MaSP = maSP,
SoLuong = soLuong,
DonGia = donGia,
};
context.ChiTietHopDong.Add(cthd);
context.SaveChanges();
return(true);
}
catch (Exception e)
{
err = e.Message;
return(false);
}
}