[InvalidOperationException: 数据源中没有 DataRow。]
System.Data.DataTableExtensions.LoadTableFromEnumerable(IEnumerable`1 source, DataTable table, Nullable`1 options, FillErrorEventHandler errorHandler) +1150
System.Data.DataTableExtensions.CopyToDataTable(IEnumerable`1 source) +98
Companies.View.Index.PopularLessonServiceCatalog(School sch) +322
Companies.View.Index.Page_Load(Object sender, EventArgs e) +627
System.Web.UI.Control.OnLoad(EventArgs e) +108
System.Web.UI.Control.LoadRecursive() +90
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1533
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