public override void ProcessActivity(WebRequest request, WebResponse response)
        {
            var     list   = new List <WebMeta>();
            var     stitle = "天天录";
            UITitle title  = new UITitle(stitle);
            var     items  = new List <UIClick>();

            var entity = Data.Database.Instance().ObjectEntity <SearchKeyword>()
                         .Where
                         .And().In(new SearchKeyword {
                user_id = Guid.Empty
            })
                         .Entities.Order.Desc(new SearchKeyword {
                Time = 0
            }).Entities;

            entity.Query(0, 20, dr => items.Add(new UIClick(new WebMeta().Put("cmd", "UI", "model", "Subject", "text", dr.Keyword))
            {
                Key = "Search", Text = dr.Keyword
            }));

            if (items.Exists(g => String.Equals(g.Text, stitle, StringComparison.CurrentCultureIgnoreCase)) == false)
            {
                items.Insert(0, new UIClick(new WebMeta().Put("cmd", "UI", "model", "Subject", "text", stitle))
                {
                    Key = "Search", Text = stitle
                });
            }
            title.Items(items.ToArray());
            title.Name("icon", "\uea0e");

            title.Right(new UIEventText().Icon('\uf2e1').Click(UIClick.Scanning()));
            list.Add(new WebMeta().Put("model", "Subject", "cmd", "UI", "text", "知识推荐").Put("RefreshEvent", "Subject.Save"));
            list.Add(new WebMeta().Put("model", "Subject", "cmd", "Follow", "text", "我的关注").Put("RefreshEvent", "Subject.Save"));
            list.Add(new WebMeta().Put("model", "Subject", "cmd", "Self", "text", "我的文档").Put("RefreshEvent", "Subject.Save"));

            response.Redirect(new WebMeta().Put("title", title).Put("sections", list));
        }