[InvalidOperationException: 序列不包含任何元素]
System.Linq.Enumerable.First(IEnumerable`1 source) +335
SD.SmartWebSite.Article.Article.BindArticle() +245
SD.SmartWebSite.Article.Article.Page_Load(Object sender, EventArgs e) +50
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +52
System.Web.UI.Control.OnLoad(EventArgs e) +97
System.Web.UI.Control.LoadRecursive() +61
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +693
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