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An intermittent error I don't understand.

Posted By:      Posted Date: October 13, 2010    Points: 0   Category :ASP.Net

I'm new to ASP.net and using C# for the language. I wrote an application to track item moving from one location to another. Everything works fine in test and about half of the time in production but Occasionally I get an exception that I can't figure out. Any help would be great. When the user logs in I check for their access level I have stored in a Sybase database. The default page login code behind page has this code:

checkUserAccessLevel newUser = new checkUserAccessLevel();

               int currentUserAccessLevel = 0;

               currentUserAccessLevel = newUser.GetAccess();

The error message has the third line with the error plus a line in the class code file I am using.

Exception message: Object reference not set to an instance of an object.


Here is the class file located in the App_Code directory:

using System;

using System.Data;

using System.Configuration;

using Sybase.Data.AseClient;


public class checkUserAccessLevel


        string _svAppMode = (string)System.Web.HttpContext.Current.Session["_svAppMode"].ToString();

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