partial void DeletetbFriend(tbFriend instance);
partial void UpdatetbFriend(tbFriend instance);
partial void InserttbFriend(tbFriend instance);
private void detach_tbFriends1(tbFriend entity)
{
this.SendPropertyChanging();
entity.tbUser1 = null;
}
private void attach_tbFriends1(tbFriend entity)
{
this.SendPropertyChanging();
entity.tbUser1 = this;
}