“ /”应用程序中的服务器错误。

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Line 153:            //                                                                     select myRow).Take(15).CopyToDataTable<DataRow>() : null;
Line 154:
Line 155:            Rpt_overallevent.DataSource = (from myRow in dt.AsEnumerable()
Line 156:                                           where myRow.Field<Int32>("noofdays") < 0
Line 157:                                           orderby myRow.Field<Int32>("noofdays") descending

[InvalidOperationException:  源不包含DataRows。 ]
   System.Data.DataTableExtensions.LoadTableFromEnumerable(IEnumerable`1 source, DataTable table, Nullable`1 options, FillErrorEventHandler errorHandler) +1150
   System.Data.DataTableExtensions.CopyToDataTable(IEnumerable`1 source) +98
   Index.Overallrecentevent(DataTable dt) in  c：\ FTPData \ Angelopedia \ Index.aspx.cs :155
   Index.Page_Load(Object sender, EventArgs e) in  c：\ FTPData \ Angelopedia \ Index.aspx.cs :48
   System.Web.UI.Control.OnLoad(EventArgs e) +108
   System.Web.UI.Control.LoadRecursive() +90
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1533