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Posted 11 Oct 2013
Licenced CPOL

Logging Errors and Exceptions in ASP.NET 2.0

, 11 Oct 2013
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In this article i am going to use simple class which use to write error and exceptions occured in your application in a text file

This articles was originally at but has now been given a new home on CodeProject. Editing rights for this article has been set at Bronze or above, so please go in and edit and update this article to keep it fresh and relevant.

In this article i am going to use simple class which use to write error and exceptions occured in your application in a text file format.

Below i have created a class Common in which there is function WriteToEventLog which accepts Exception as parameter.

public class  Common


public static void WriteToEventLog(Exception exception)
string sPath = “~/error/” + DateTime.Today.ToString(”dd-mm-yy”) + “.txt”;
if (!File.Exists(System.Web.HttpContext.Current.Server.MapPath(sPath)))

StreamWriter objStreamWriter = File.AppendText(System.Web.HttpContext.Current.Server.MapPath(sPath));
objStreamWriter.WriteLine(”\r\nLog Entry : “);
objStreamWriter.WriteLine(”{0}”, DateTime.Now.ToString(CultureInfo.InvariantCulture));
string sError = “Error in: ” + System.Web.HttpContext.Current.Request.Url.ToString() +
“. Error Message:\n” + exception.Message;


Now our class is ready you only need to call in your try catch body as shown below…

protected void Page_Load(object sender, EventArgs e)
if (!IsPostBack)
if (User.HasUserLoggedIn())

Response.Redirect(”~/pages/MessagePage.aspx?ConfigValue=MsgUserNotLoggedIn”, false);
catch (Exception ex)


This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


About the Author

ASP.NET Community
United States United States
The ASP.NET Wiki was started by Scott Hanselman in February of 2008. The idea is that folks spend a lot of time trolling the blogs, googlinglive-searching for answers to common "How To" questions. There's piles of fantastic community-created and MSFT-created content out there, but if it's not found by a search engine and the right combination of keywords, it's often lost.

The ASP.NET Wiki articles moved to CodeProject in October 2013 and will live on, loved, protected and updated by the community.
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