Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people, just like you, are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
Solved

How can I create a log files in C Sharp?

Posted on 2011-03-24
4
387 Views
Last Modified: 2012-05-11
I need a simple example that send the log into a text file.
i.e. Let say that I have a form with a text box and two buttons.
     one button sum and the other multiply.
When I press the button sum button, I want to send the sum of A + B to the text box and if the sum goes fine, write time, date, and small text massage to a file saying that all went fine.

Does not have to be this example, I am just trying to explain what I need.
Thank you.
0
Comment
Question by:iscivanomar
  • 2
4 Comments
 
LVL 7

Expert Comment

by:mkobrin
ID: 35205171
I have a method called logger that does just this. I'll post the code in a couple of minutes.
0
 
LVL 7

Accepted Solution

by:
mkobrin earned 125 total points
ID: 35205188
Here it is:
public static void Logger(string fileName, string data)
        {
            try
            {
                fileName = fileName + DateTime.Today.ToString("yyyy-MM-dd") + ".LOG";
                if (File.Exists(fileName))
                {
                    using (StreamWriter SW = File.AppendText(fileName))
                    {
                        SW.WriteLine(DateTime.Now.ToString("dd MMM HH:mm:ss") + ": " + data);
                    }
                }
                else
                {
                    using (StreamWriter SW = File.CreateText(fileName))
                    {
                        SW.WriteLine(DateTime.Now.ToString("dd MMM HH:mm:ss") + ": " + data);
                    }
                }
            }
            catch
            {
                Logger(fileName, "Error logging " + data);
            }
        }

Open in new window

0
 
LVL 19

Assisted Solution

by:Rikin Shah
Rikin Shah earned 125 total points
ID: 35205280
using System;
using System.IO;
using System.Windows.Forms;

namespace Logger
{
    class EventLogger
    {
        public void LogErrors(string data)
        {
            Application.DoEvents();
            try
            {
                File.AppendAllText("C:\\Log.txt", string.Format("{0} : {1}{2}", DateTime.Now, data, Environment.NewLine));
            }
            catch (Exception exception)
            {
                throw new Exception("Error writing log event", exception);
            }
            Application.DoEvents();
        }
    }
}

Open in new window


use this class and call a method whenever you want to log anything.
0
 

Author Closing Comment

by:iscivanomar
ID: 35205395
Thank you both. Have a good day.
0

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Article by: Ivo
C# And Nullable Types Since 2.0 C# has Nullable(T) Generic Structure. The idea behind is to allow value type objects to have null values just like reference types have. This concerns scenarios where not all data sources have values (like a databa…
It was really hard time for me to get the understanding of Delegates in C#. I went through many websites and articles but I found them very clumsy. After going through those sites, I noted down the points in a easy way so here I am sharing that unde…
Two types of users will appreciate AOMEI Backupper Pro: 1 - Those with PCIe drives (and haven't found cloning software that works on them). 2 - Those who want a fast clone of their boot drive (no re-boots needed) and it can clone your drive wh…
Finds all prime numbers in a range requested and places them in a public primes() array. I've demostrated a template size of 30 (2 * 3 * 5) but larger templates can be built such 210  (2 * 3 * 5 * 7) or 2310  (2 * 3 * 5 * 7 * 11). The larger templa…

809 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question