partial void DeleteMailBox(MailBox instance);
partial void UpdateMailBox(MailBox instance);
private void detach_MailBoxes(MailBox entity)
{
this.SendPropertyChanging();
entity.User = null;
}
partial void InsertMailBox(MailBox instance);
private void attach_MailBoxes(MailBox entity)
{
this.SendPropertyChanging();
entity.User = this;
}