Server Error in '/' Application.

Sequence contains no elements

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.InvalidOperationException: Sequence contains no elements

Source Error:


Line 18:         Dim ObjectID = RouteData.Values("ObjectID")
Line 19: 
Line 20:         Dim App_GetCorsiDTO_Result As App_GetCorsiDTO_Result = oAppCorsoService.GetAppCorsiDTO(Me.PaginaLingua.LinguaID,, ObjectID).First
Line 21: 
Line 22:         'Literal_nome.Text = App_GetCorsiDTO_Result.LinguaNome

Source File: C:\inetpub\wwwroot\IdeaVerona\PagineWeb\1\_169.aspx.vb    Line: 20

Stack Trace:


[InvalidOperationException: Sequence contains no elements]
   System.Linq.Enumerable.First(IEnumerable`1 source) +335
   TemplatePagina_1.TemplatePagina_1_Init(Object sender, EventArgs e) in C:\inetpub\wwwroot\IdeaVerona\PagineWeb\1\_169.aspx.vb:20
   System.EventHandler.Invoke(Object sender, EventArgs e) +0
   System.Web.UI.Control.OnInit(EventArgs e) +97
   System.Web.UI.Page.OnInit(EventArgs e) +14
   System.Web.UI.Control.InitRecursive(Control namingContainer) +142
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +416


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4700.0