partial void DeleteFriendship(Friendship instance);
partial void UpdateFriendship(Friendship instance);
private void detach_Friendships1(Friendship entity)
{
this.SendPropertyChanging();
entity.User1 = null;
}
partial void InsertFriendship(Friendship instance);
private void attach_Friendships1(Friendship entity)
{
this.SendPropertyChanging();
entity.User1 = this;
}