public void InsertBanBe(string taikhoan, string taikhoanban)        
 {
     hoctuvungLINQDataContext db = new hoctuvungLINQDataContext();
     Banbe ban = new Banbe();
     ban.taikhoan = taikhoan;
     ban.taikhoanban = taikhoanban;
     db.Banbes.InsertOnSubmit(ban);
     db.SubmitChanges();
 }
 partial void DeleteBanbe(Banbe instance);
 partial void UpdateBanbe(Banbe instance);
 partial void InsertBanbe(Banbe instance);
		private void detach_Banbes1(Banbe entity)
		{
			this.SendPropertyChanging();
			entity.NguoiDung1 = null;
		}
		private void attach_Banbes(Banbe entity)
		{
			this.SendPropertyChanging();
			entity.NguoiDung = this;
		}