public ActionResult List([DataSourceRequest] DataSourceRequest request)
        {
            request.RemoveDefaultSort();
            var list = regionProvider.ListRegion();

            return(Json(list.ToDataSourceResult(request)));
        }
        public ActionResult List([DataSourceRequest] DataSourceRequest request)
        {
            request.RemoveDefaultSort();
            var list = complaintTypeProvider.ListComplaintTypes();

            return(Json(list.ToDataSourceResult(request)));
        }
        public ActionResult List([DataSourceRequest] DataSourceRequest request)
        {
            request.RemoveDefaultSort();
            IQueryable <DataAccess.Fee> list = feeProvider.ListFees();

            return(Json(list.ToDataSourceResult(request)));
        }