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