partial void DeletePrinter(Printer instance);
partial void UpdatePrinter(Printer instance);
private void detach_Printer(Printer entity)
{
this.SendPropertyChanging();
entity.PC = null;
}
partial void InsertPrinter(Printer instance);
private void attach_Printer(Printer entity)
{
this.SendPropertyChanging();
entity.PC = this;
}