Code to create & Write to a Text file

Below code is to create and write text to a text file

 string mydocpath = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
            string fileLoc = mydocpath + @"\myEventLogSource_Pathwaytest.txt";
            StreamWriter sw;
            if (!File.Exists(fileLoc))
            {
                sw = new StreamWriter(File.Open(fileLoc, FileMode.Create));               }
            else
            {
                sw = new StreamWriter(File.Open(fileLoc, FileMode.Append));
            }  

sw.Write("Hello");

sw.Dispose();