public ActionResult Create(int?id, int?itemgroupid) { if (!_dataobject.sysbusinessrole.IsAdd) { return(PartialView(this._roleview)); } var model = _dataobject.GetNew(id); if (itemgroupid > 0) { model.ItemGroupID = itemgroupid ?? 0; } return(PartialView(this._updateview, model)); }