public JsonResult GetAssetRackCodeList()
 {
     List<AssetRackCodeT> assetRackCodeList = new List<AssetRackCodeT>();
     using (CodeBiz codebiz = new CodeBiz())
     {
         assetRackCodeList = codebiz.GetAssetRackCode();
     }
     Models.JqGridModel model = new Models.JqGridModel
     {
         page = 0,
         total = assetRackCodeList.Count,
         records = assetRackCodeList.Count,
         rows = assetRackCodeList
     };
     return Json(model);
 }