partial void DeletePhysicalMemory(PhysicalMemory instance);
 partial void UpdatePhysicalMemory(PhysicalMemory instance);
		private void detach_PhysicalMemory(PhysicalMemory entity)
		{
			this.SendPropertyChanging();
			entity.PC = null;
		}
 partial void InsertPhysicalMemory(PhysicalMemory instance);
		private void attach_PhysicalMemory(PhysicalMemory entity)
		{
			this.SendPropertyChanging();
			entity.PC = this;
		}