How do I do logging in C without using 3rd party libraries

Question

I would like to implement logging in my application  but would rather not use any outside frameworks like log4net   So I would like to do something like DOS s echo to a file  What is the most effective way to do it   Is there a way to log unhandled exceptions logged without using an outside framework

User · Answer

If you are looking for a real simple way to log  you can use this one liner  If the file doesn t exist  it s created   System IO File AppendAllText   c  log txt    mymsg n

User · Answer

If you want to stay close to  NET check out Enterprise Library Logging Application Block  Look here  Or for a quickstart tutorial check this  I have used the Validation application Block from the Enterprise Library and it really suits my needs and is very easy to  inherit   install it and refrence it   in your project

User · Answer

public void Logger string lines        Write the string to a file append mode is enabled so that the log     lines get appended to  test txt than wiping content and writing the log    using System IO StreamWriter file   new System IO StreamWriter  c   test txt   true           file WriteLine lines           For more information MSDN

User · Answer

If you want your own custom Error Logging you can easily write your own code  I ll give you a snippet from one of my projects   public void SaveLogFile object method  Exception exception        string location   Environment GetFolderPath Environment SpecialFolder ApplicationData       FolderName        try                 Opens a new file stream which allows asynchronous reading and writing         using  StreamWriter sw   new StreamWriter new FileStream location     log txt   FileMode Append  FileAccess Write  FileShare ReadWrite                            Writes the method name with the exception and writes the exception underneath             sw WriteLine String Format   0    1   - Method   2    DateTime Now ToShortDateString    DateTime Now ToShortTimeString    method ToString                  sw WriteLine exception ToString     sw WriteLine                          catch  IOException                if   File Exists location     log txt                          File Create location     log txt                        Then to actually write to the error log just write  q being the caught exception   SaveLogFile MethodBase GetCurrentMethod     q

User · Answer

You can write directly to an event log  Check the following links  http   support microsoft com kb 307024  http   msdn microsoft com en-us library system diagnostics eventlog aspx  And here s the sample from MSDN   using System  using System Diagnostics  using System Threading   class MySample       public static void Main                Create the source  if it does not already exist          if  EventLog SourceExists  MySource                             An event log source should not be created and immediately used                 There is a latency time to enable the source  it should be created                prior to executing the application that uses the source                 Execute this sample a second time to use the new source              EventLog CreateEventSource  MySource    MyNewLog                Console WriteLine  CreatedEventSource                Console WriteLine  Exiting  execute the application a second time to use the source                    The source is created   Exit the application to allow it to be registered              return                        Create an EventLog instance and assign its source          EventLog myLog   new EventLog            myLog Source    MySource               Write an informational entry to the event log              myLog WriteEntry  Writing to event log

User · Answer

I would rather not use any outside   frameworks like log4j net    Why  Log4net would probably address most of your requirements  For example check this class  RollingFileAppender   Log4net is well documented and there are thousand of resources and use cases on the web

User · Answer

I used to write my own error logging until I discovered ELMAH  I ve never been able to get the emailing part down quite as perfectly as ELMAH does

[c#] How do I do logging in C# without using 3rd party libraries?

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