Show line number in exception handling using C#

Here i will show how to display Exception Line Number in C#.Net as shown below......
The Exception in this Out is due to SQL Connection....

1. First create a class called ExceptionHelper.cs 
2. Write a  public static method as shown below..........

Out Put :

C# Code :

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Web;

namespace BAL

{

    public static class ExceptionHelper

    {

        public static int LineNumber(this Exception e)

        {

            int linenum = 0;

            try

            {

                linenum = Convert.ToInt32(e.StackTrace.Substring(e.StackTrace.LastIndexOf(":line") + 5));

                HttpContext.Current.Session["ErrorLineNo"] = linenum.ToString();

            }

            catch

            {

                //Stack trace is not available!

            }

            return linenum;

        }

    }

}