Question

i want to create a simple log file for and adding frames.
here is what i found so far.>br>
this class invoked from another class which is executed in looping, so everytime the loop end it will call this calss and this class will write a log(data created in time). But, all i got is everytime a new string written in txt file it only replace the first one.
how can i add a new string in new line without replacing the old one?
i read the environment.newline but i dont get it.

    private void logFile()
    {
        StreamWriter logfile = null;
        logfile = File.CreateText(Server.MapPath("/CCTV_Files/log.txt"));
        try
        {
            logfile.Write(String.Format("{0:yyyyMMdd_hhmmss}", DateTime.Now) + " Frame added");
        }
        catch (IOException e)
        {
            Console.WriteLine(e);
        }
        catch (Exception e)
        {
            Console.WriteLine(e);
        }
        finally
        {
            if (logfile != null)
            {
                logfile.Close();
            }
        }
     }

Answer 1

Use File.AppendText:

logfile = File.AppendText(Server.MapPath("/CCTV_Files/log.txt"));

instead of File.CreateText:

logfile = File.CreateText(Server.MapPath("/CCTV_Files/log.txt"));