Server Error in '/Normelombardia' Application.

Showing a modal dialog box or form when the application is not running in UserInteractive mode is not a valid operation. Specify the ServiceNotification or DefaultDesktopOnly style to display a notification from a service application.

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: Showing a modal dialog box or form when the application is not running in UserInteractive mode is not a valid operation. Specify the ServiceNotification or DefaultDesktopOnly style to display a notification from a service application.

Source Error:


Line 1978:        String riferimentiHTML = "";
Line 1979:
Line 1980:        DataTable dt = Business.Previgenti.GetTabellaVisualizzazionePrevigenti(Business.Previgenti.TipoPrevigenza.Documento, docDaVisualizzare.IdDoc);
Line 1981:        //if (dt != null || dt.Rows.Count >= 0) riferimentiHTML += "<br /><br /><br /><div class=\"riferimenti\">Testi previgenti</div>";
Line 1982:        DateTime dtFineVigenza = new DateTime(1, 1, 1);

Source File: \\file01\nir$\accessibile\main.aspx.cs    Line: 1980

Stack Trace:


[InvalidOperationException: Showing a modal dialog box or form when the application is not running in UserInteractive mode is not a valid operation. Specify the ServiceNotification or DefaultDesktopOnly style to display a notification from a service application.]
   System.Windows.Forms.MessageBox.ShowCore(IWin32Window owner, String text, String caption, MessageBoxButtons buttons, MessageBoxIcon icon, MessageBoxDefaultButton defaultButton, MessageBoxOptions options, Boolean showHelp) +2996252
   Business.Previgenti.GetTabellaVisualizzazionePrevigenti(TipoPrevigenza Tipo, Int32 idDoc, String idParte) +304
   Business.Previgenti.GetTabellaVisualizzazionePrevigenti(TipoPrevigenza Tipo, Int32 idDoc) +11
   accessibile_main.visualizzaCorrelazioni() in \\file01\nir$\accessibile\main.aspx.cs:1980
   accessibile_main.Page_Load(Object sender, EventArgs e) in \\file01\nir$\accessibile\main.aspx.cs:294
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +51
   System.Web.UI.Control.OnLoad(EventArgs e) +95
   System.Web.UI.Control.LoadRecursive() +59
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +678


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.6.1055.0