How to write a log file to the current directory path.

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Hi,
How to write a log file to the current directory path.
I have the following code to write file to a specific location. I need to change the code in such a way that the file should be written to the current directory. Please help me.

C#

public void WriteFile(string message, byte[] respMsg)
       {
           FileStream fileStream = null;
           StreamWriter streamWriter = null;
           try
           {
               string currentDir = Environment.CurrentDirectory;
               DirectoryInfo directory = new DirectoryInfo(currentDir);
               FileInfo file = new FileInfo(args[0]);


               string logFilePath = "../../LogError\\";

               logFilePath = logFilePath + "ProgramLog" + "-" + DateTime.Today.ToString("yyyyMMdd") + "." + "txt";

               if (logFilePath.Equals("")) return;
               #region Create the Log file directory if it does not exists
               DirectoryInfo logDirInfo = null;
               FileInfo logFileInfo = new FileInfo(logFilePath);
               logDirInfo = new DirectoryInfo(logFileInfo.DirectoryName);
               if (!logDirInfo.Exists) logDirInfo.Create();
               #endregion Create the Log file directory if it does not exists

               if (!logFileInfo.Exists)
               {
                   fileStream = logFileInfo.Create();
               }
               else
               {
                   fileStream = new FileStream(logFilePath, FileMode.Create);
               }
               streamWriter = new StreamWriter(fileStream);
               streamWriter.WriteLine(message);
               StringBuilder builder = new StringBuilder(respMsg.Length * 3);
               foreach (byte data in respMsg)
                   builder.Append(Convert.ToString(data, 16).PadLeft(2, '0').PadRight(3, ' '));
               streamWriter.WriteLine(builder.ToString().Trim());

           }

Posted 28-Aug-14 18:54pm

Utheen

Updated 28-Aug-14 18:57pm

Gihan Liyanage

v3

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Comments

syed shanu 29-Aug-14 1:07am

Current Directory path means Do you want to store the log file in your BIN folder.

string Current_directory_path = Path.GetDirectoryName(Path.GetDirectoryName(System.IO.Directory.GetCurrentDirectory()));
or
Current_directory_path = System.IO.Path.GetDirectoryName(
System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase );

or
Path.GetDirectoryName(Application.ExecutablePath)

Bernhard Hiller 29-Aug-14 2:41am

So what's wrong with your code in your opinion?
Did you get some exception ("Access denied")?
Do you understand when Environment.CurrentDirectory and Application.StartupPath are different - and why it can be so?

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Raul Iloc · Answer 1 · 2014-08-28T19:07:00

By specifying no path for "File" methods, the current directory will be used; and current directory directory means the directory where your application is located.

The source code should be:

C#

public void WriteFile(string message, byte[] respMsg)
        {
            FileStream fileStream = null;
            StreamWriter streamWriter = null;
            try
            {
                string logFileName ="ProgramLog" + "-" + DateTime.Today.ToString("yyyyMMdd") + "." + "txt";
 
                fileStream = new FileStream(logFileName, FileMode.Create);
                // 
                streamWriter = new StreamWriter(fileStream);
                streamWriter.WriteLine(message);
                StringBuilder builder = new StringBuilder(respMsg.Length * 3);
                foreach (byte data in respMsg)
                    builder.Append(Convert.ToString(data, 16).PadLeft(2, '0').PadRight(3, ' '));
                streamWriter.WriteLine(builder.ToString().Trim());
 
            }
            //...

Utheen · Answer 2 · 2014-08-28T19:40:00

C#

string currentDir = Environment.CurrentDirectory;
                 string logFilePath = currentDir+"\\LogError\\";
                Console.WriteLine("==="+logFilePath);

                logFilePath = logFilePath + "ProgramLog" + "-" + DateTime.Today.ToString("yyyyMMdd") + "." + "txt";

 fileStream = new FileStream(logFilePath, FileMode.CreateNew);
 streamWriter = new StreamWriter(fileStream);
               streamWriter.WriteLine(message);

How to write a log file to the current directory path.

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