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 2144:
Line 2145:        String riferimentiHTML = "";
Line 2146:        if (docDaVisualizzare.Classificazioni != null)
Line 2147:        {
Line 2148:            // Visualizza le classificazioni

Source File: \\file01\nir$\accessibile\main.aspx.cs    Line: 2146

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
   System.Windows.Forms.MessageBox.Show(String text) +31
   ControlliRegioneLombardia.ClassificazioneClass..ctor(Int32 IdDoc) in C:\Sandro\LavoriInCorso\XNormeRegioneLombardia\ControlliRegioneLombardia\ImportazioneRL.cs:705
   ControlliRegioneLombardia.DocumentoRL.get_Classificazioni() in C:\Sandro\LavoriInCorso\XNormeRegioneLombardia\ControlliRegioneLombardia\ImportazioneRL.cs:3835
   accessibile_main.visualizzaClassificazioni() in \\file01\nir$\accessibile\main.aspx.cs:2146
   accessibile_main.Page_Load(Object sender, EventArgs e) in \\file01\nir$\accessibile\main.aspx.cs:297
   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