private void detach_ContactReceiver_ContactTypes(ContactReceiver_ContactType entity)
		{
			this.SendPropertyChanging();
			entity.ContactReceiver = null;
		}
 partial void UpdateContactReceiver_ContactType(ContactReceiver_ContactType instance);
 partial void DeleteContactReceiver_ContactType(ContactReceiver_ContactType instance);
 partial void InsertContactReceiver_ContactType(ContactReceiver_ContactType instance);