Server Error in '/' Application.

Author1 is neither a DataColumn nor a DataRelation for table result.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.ArgumentException: Author1 is neither a DataColumn nor a DataRelation for table result.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:


[ArgumentException: Author1 is neither a DataColumn nor a DataRelation for table result.]
   Microsoft.VisualBasic.CompilerServices.Container.InvokeMethod(Method TargetProcedure, Object[] Arguments, Boolean[] CopyBack, BindingFlags Flags) +490
   Microsoft.VisualBasic.CompilerServices.NewLateBinding.ObjectLateGet(Object Instance, Type Type, String MemberName, Object[] Arguments, String[] ArgumentNames, Type[] TypeArguments, Boolean[] CopyBack) +392
   Microsoft.VisualBasic.CompilerServices.NewLateBinding.LateGet(Object Instance, Type Type, String MemberName, Object[] Arguments, String[] ArgumentNames, Type[] TypeArguments, Boolean[] CopyBack) +1571586
   NeelwaFurat.browseaudio_books.RepBrowse_ItemDataBound(Object sender, RepeaterItemEventArgs e) +621
   System.Web.UI.WebControls.Repeater.OnItemDataBound(RepeaterItemEventArgs e) +139
   System.Web.UI.WebControls.Repeater.CreateItem(Int32 itemIndex, ListItemType itemType, Boolean dataBind, Object dataItem) +193
   System.Web.UI.WebControls.Repeater.AddDataItemsIntoItemsArray(IEnumerable dataSource, Boolean useDataSource) +291
   System.Web.UI.WebControls.Repeater.PostGetDataAction(IEnumerable dataSource) +109
   System.Web.UI.WebControls.Repeater.OnDataBinding(EventArgs e) +81
   NeelwaFurat.browseaudio_books.ShowLast() +13653
   NeelwaFurat.browseaudio_books.Page_Load(Object sender, EventArgs e) +2332
   System.Web.UI.Control.OnLoad(EventArgs e) +108
   System.Web.UI.Control.LoadRecursive() +90
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1533


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4690.0