private void detach_SALES_ORDER_DETAILs(SALES_ORDER_DETAIL entity)
 {
     this.SendPropertyChanging();
     entity.SALES_ORDER = null;
 }
 partial void DeleteSALES_ORDER_DETAIL(SALES_ORDER_DETAIL instance);
 partial void InsertSALES_ORDER_DETAIL(SALES_ORDER_DETAIL instance);
 partial void UpdateSALES_ORDER_DETAIL(SALES_ORDER_DETAIL instance);
 private void attach_SALES_ORDER_DETAILs(SALES_ORDER_DETAIL entity)
 {
     this.SendPropertyChanging();
     entity.ITEM = this;
 }