How to Implementing file log in asp.net?

Question

Hello How to Implementing file log in asp.net.Use seprate class to implementing logic og file and how to access this class in page on button click...... thanks in advance

Satyendra Kumar Singh · Answer

H ello Maharudra you can create a error.cs file in app_code folder and write bellow code error.cs =================== public static void LogErrors(Exception ex) { HttpRequest oHttpRequest = HttpContext.Current.Request; StreamWriter oStreamWriter = new StreamWriter(/MiscFiles/Errors.htm true); oStreamWriter.WriteLine( ----- Start Error :  + System.DateTime.Now.ToString() +  ----- ); oStreamWriter.WriteLine(  + ex.StackTrace.ToString() +  ); oStreamWriter.WriteLine(  + oHttpRequest.RawUrl +  ); oStreamWriter.WriteLine(  + ex.Message.ToString() +  ); oStreamWriter.WriteLine(  + ex.TargetSite.ToString() +  ); oStreamWriter.Close(); } after that use try catch block in your aspx.cs page try { //Your code } } catch (Exception ex) { //write log error.LogErrors(ex); }

Maharudra Gadekar · Answer

Hello satyendra Iallready try this logic but i want to implement seprate class file(BAL) and access this class in my .cs page (test.aspx.cs) this page. Implement errorlog logic in seprate class file and this class file access in my project....like that 3 tire architecture. help me..... thanks in advance...

Chetan Ranpariya · Answer

Hi Maharudra Are you trying to achieve feature of logging information such as errors in your application? The best way would be to use some ready to use logging framework which are easy to configure and use. Log4net is one such framework which is lightweight and provides various features such as writing logs to file or database or events etc. It's very easy to configure and use. Please go thru following links to understand it better. https://logging.apache.org/log4net/release/faq.html http://www.c-sharpcorner.com/UploadFile/db2972/error-logging-using-log4net-in-web-application/ http://dotnetliberty.com/index.php/2015/11/09/asp-net-5-logging-with-log4net/ Thanks and regards Chetan Ranpariya

Satyendra Kumar Singh · Answer

asp : Button Text =Click to Raise Exception runat =server OnClick =RaiseException /> protected void RaiseException( object sender EventArgs e) { try { int i = int .Parse( Satyendra ); } catch ( Exception ex) { this .LogError(ex); } } private void LogError( Exception ex) { string message = string .Format( Time: {0}  DateTime .Now.ToString( dd/MM/yyyy hh:mm:ss tt )); message += Environment .NewLine; message += ----------------------------------------------------------- ; message += Environment .NewLine; message += string .Format( Message: {0}  ex.Message); message += Environment .NewLine; message += string .Format( StackTrace: {0}  ex.StackTrace); message += Environment .NewLine; message += string .Format( Source: {0}  ex.Source); message += Environment .NewLine; message += string .Format( TargetSite: {0}  ex.TargetSite.ToString()); message += Environment .NewLine; message += ----------------------------------------------------------- ; message += Environment .NewLine; string path = Server.MapPath( ~/ErrorLog/ErrorLog.txt ); using ( StreamWriter writer = new StreamWriter (path true )) { writer.WriteLine(message); writer.Close(); } }