Using textwriter

[gborges]

Hi all!

I code this function in order to create a log of my app.

My app calls this function every something wrong occurs. The file is created if it does not exist before.

The problem is that when I open the file, using the windows explorer, it is blank. So, any information was written in it. But, the function was called many times, as I could see debugging the app (the logMessage parameter is not empty anytime).

What is it wrong?

        public void Log (String logMessage, String w) {
            TextWriter textWriter = new StringWriter();
            using (TextWriter streamWriter = new StreamWriter(w)) {

                textWriter.Write("\r\nLog Entry : ");
                textWriter.WriteLine("{0} {1}", DateTime.Now.ToLongTimeString(),
                    DateTime.Now.ToLongDateString());
                textWriter.WriteLine("  :");
                textWriter.WriteLine("  :{0}", logMessage);
                textWriter.WriteLine("-------------------------------");
                // Update the underlying file.
                textWriter.Flush();
                textWriter.Close();
            }
        }

Thank you in advance.