public int NhapKho(KhoHang kh)
{
try
{
KhoHang k = db.KhoHangs.SingleOrDefault(n => n.idsanpham == kh.idsanpham && n.size == kh.size);
if(k!= null)
{
k.soluong = k.soluong + kh.soluong;
db.SubmitChanges();
}
else
{
db.KhoHangs.InsertOnSubmit(kh);
db.SubmitChanges();
}
}
catch
{
return -1;
}
return 1;
}
public int UpdateKhoHang(KhoHang kh)
{
try
{
KhoHang k = db.KhoHangs.SingleOrDefault(n => n.idsanpham == kh.idsanpham && n.size == kh.size);
k.soluong = k.soluong - kh.soluong;
db.SubmitChanges();
}
catch
{
return -1;
}
return 1;
}
partial void DeleteKhoHang(KhoHang instance);
partial void UpdateKhoHang(KhoHang instance);
partial void InsertKhoHang(KhoHang instance);
private void detach_KhoHangs(KhoHang entity)
{
this.SendPropertyChanging();
entity.Product = null;
}
private void attach_KhoHangs(KhoHang entity)
{
this.SendPropertyChanging();
entity.Product = this;
}