private void detach_SACs(SAC entity)
		{
			this.SendPropertyChanging();
			entity.Empresa = null;
		}
		private void attach_SACs(SAC entity)
		{
			this.SendPropertyChanging();
			entity.Empresa = this;
		}
 partial void UpdateSAC(SAC instance);
 partial void DeleteSAC(SAC instance);
 partial void InsertSAC(SAC instance);