private void detach_tblProductItems(tblProductItem entity)
		{
			this.SendPropertyChanging();
			entity.tblDevice_Type = null;
		}
 partial void DeletetblProductItem(tblProductItem instance);
 partial void InserttblProductItem(tblProductItem instance);
 partial void UpdatetblProductItem(tblProductItem instance);
		private void detach_tblProductItems(tblProductItem entity)
		{
			this.SendPropertyChanging();
			entity.tblProductBrand = null;
		}