Server Error in '/Normelombardia' Application.

Object reference not set to an instance of an object.

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.NullReferenceException: Object reference not set to an instance of an object.

Source Error:


Line 4072:                else tmpbool = true;
Line 4073:                nodoliv2 = nodoliv1.addNodo(tmpbool, _tipodoc.IdTipoDocumento.ToString() + anno.Millesimo.ToString());
Line 4074:                nodoliv2.TestoAlternativo = anno.Millesimo.ToString();
Line 4075:                nodoliv2.TestoNodo = anno.Millesimo.ToString();
Line 4076:                //Aggiungo i sottonodi (in questo caso le foglie)

Source File: \\file01\nir$\accessibile\main.aspx.cs    Line: 4074

Stack Trace:


[NullReferenceException: Object reference not set to an instance of an object.]
   accessibile_main.caricaDatiperAlbero() in \\file01\nir$\accessibile\main.aspx.cs:4074
   accessibile_main.visualizzaClassificazioni() in \\file01\nir$\accessibile\main.aspx.cs:2134
   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