partial void DeleteEntityContact(EntityContact instance);
 partial void UpdateEntityContact(EntityContact instance);
		private void detach_EntityContacts(EntityContact entity)
		{
			this.SendPropertyChanging();
			entity.Entity = null;
		}
 partial void InsertEntityContact(EntityContact instance);
		private void attach_EntityContacts(EntityContact entity)
		{
			this.SendPropertyChanging();
			entity.Entity = this;
		}