SharePoint 2010 WebPart开发——获取最热门搜索查询WebPart（code）

           其中GetTopKeywords()方法就是获取在搜索中心最热门搜索查询。前提要引用两个dll文件，Microsoft.Office.Server.WebAnalytics.dll和Microsoft.Office.Server.WebAnalytics.UI.dll

        protected DataTable GetTopKeywords(SPSite site)
        {
            AggregationContext aggregationContext = AggregationContext.GetContext(site);

            List<ViewParameterValue> viewParamsList = new List<ViewParameterValue>();
            viewParamsList.Add(new ViewParameterValue("StartDateId", DateTimeToDateId(DateTime.UtcNow.AddMonths(-1))));
            viewParamsList.Add(new ViewParameterValue("EndDateId", DateTimeToDateId(DateTime.UtcNow)));
            viewParamsList.Add(new ViewParameterValue("ScopeName", null));

            DataPacket dataPacket = FrontEndDataRetriever.QueryData(aggregationContext, null, "fn_WA_GetTopSearchQueries", viewParamsList, null, GetSortOrder("Frequency", OrderType.Descending), 1, 2000, false);

            return dataPacket.DataTable;
        }

        public static int DateTimeToDateId(DateTime dt)
        {
            if (string.IsNullOrEmpty(dt.ToString()))
            {
                return 0;
            }
            return int.Parse(dt.ToString("yyyyMMdd", CultureInfo.InvariantCulture), CultureInfo.InvariantCulture);
        }


        private static List<SortOrder> GetSortOrder(string sortColumn, OrderType order)
        {
            List<SortOrder> list = new List<SortOrder>();
            SortOrder item = null;
            item = new SortOrder(sortColumn, order);
            list.Add(item);
            return list;
        }

　　效果如下图所示（红框中是重点）：