#region Linq to datatable.
        /// <summary>
        /// Linq to datatable.
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="data"></param>
        /// <returns></returns>
        public static DataTable LinqToDataTable<T>(IEnumerable<T> data)
        {
            var dt = new DataTable();
            // column names

            PropertyInfo[] oProps = null;

            // Could add a check to verify that there is an element 0

            foreach (T rec in data)
            {

                // Use reflection to get property names, to create table, Only first time, others will follow

                if (oProps == null)
                {

                    oProps = ((Type)rec.GetType()).GetProperties();

                    foreach (PropertyInfo pi in oProps)
                    {

                        Type colType = pi.PropertyType;
                        if ((colType.IsGenericType) && (colType.GetGenericTypeDefinition() == typeof(Nullable<>)))
                        {

                            colType = colType.GetGenericArguments()[0];

                        }

                        dt.Columns.Add(new DataColumn(pi.Name, colType));

                    }

                }

                DataRow dr = dt.NewRow(); foreach (PropertyInfo pi in oProps)
                {

                    dr[pi.Name] = pi.GetValue(rec, null) == null ? DBNull.Value : pi.GetValue(rec, null);

                }

                dt.Rows.Add(dr);

            }

            return dt;
        }

        #endregion

  #region 创建临时表

            var _filter =
            from q in mdc.WebSuite_Catalogs
            where q.CatalogCancellation == false
            orderby q.CatalogOrder
            select
            new
           {
               q.CatalogId,
               q.CatalogRootId,
               q.CatalogOrder,
               q.CatalogName,
               q.CatalogCode,
               q.NavigationLicence,
               q.CatalogPath
           };

            DataTable dt = LinqToDataTable(_filter);

            #endregion

 public ActionResult CreateCategory(string Name, string status, string kind)
        {
            
            //我该在这里如何写代码，去调用我的临时表？？
            return RedirectToAction("Index");
        }

        #endregion