Writing logs in C#

Question

Hi All,
I am very new to C# language.I am working on an application in which I have to create an event log file in which I have to capture the entries from a text box and put them in the log file.What should be the code?

Scott Lysle · Answer

Here is a simple class you can use to write error messages to a text file located in the path of the application in an error log file: using System; using System.Collections.Generic; using System.Diagnostics; using System.IO; using System.Text; using System.Windows.Forms; namespace Exceptions { /// /// Write Error Message to a text /// file /// public class ErrorLogger { // default constructor public ErrorLogger() { } // overloaded constructor public ErrorLogger( string msg, string stkTrace, string title) { WriteToErrorLog(msg, stkTrace, title); } /// /// Write to Error Log (Text File) /// /// The message text /// to write /// The stack trace /// for the exception /// The name of the error public void WriteToErrorLog( string msg, string stkTrace, string title) { // check and make the directory if necessary; // this is set to look in the application // folder, you may wish to place the error // log in another location depending upon the // the user's role and write access to different // areas of the file system if (!System.IO. Directory .Exists( Application .StartupPath + "\Errors\" )) { System.IO. Directory .CreateDirectory( Application .StartupPath + "\Errors\" ); } string DateAppendage = DateTime .Now.Month.ToString() + "_" + DateTime .Now.Day.ToString() + "_" + DateTime .Now.Year.ToString(); // check the file, create it if necessary - do not // write the message in this pass, FileStream fs = new FileStream ( Application .StartupPath + "\Errors\errlog_" + DateAppendage + ".txt" , FileMode .OpenOrCreate, FileAccess .ReadWrite); StreamWriter s = new StreamWriter (fs); s.Close(); fs.Close(); fs.Dispose(); // re-open the log file and log the message FileStream fs1 = new FileStream ( Application .StartupPath + "\Errors\errlog_" + DateAppendage + ".txt" , FileMode .Append, FileAccess .Write); StreamWriter s1 = new StreamWriter (fs1); s1.Write( "Title: " + title + Environment .NewLine); s1.Write( "Message: " + msg + Environment .NewLine); s1.Write( "StackTrace: " + stkTrace + Environment .NewLine); s1.Write( "Date/Time: " + DateTime .Now.ToString() + Environment .NewLine); s1.Write( "==============================" + Environment .NewLine); s1.Close(); fs1.Close(); fs1.Dispose(); } } }

Writing logs in C#

Answers (1)