Singleton Design pattern !!!

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.IO;

namespace PCardAutomation

{
public class PCardLogger

{
public static PCardLogger Instance

{
get

{
if (_Instance == null)

{
lock (_SyncRoot)
{
if (_Instance == null)

_Instance = new PCardLogger();
                       
}
}
return _Instance;

}

}
private static volatile PCardLogger _Instance;

private static object _SyncRoot = new Object();

private PCardLogger()

{

}
public StreamWriter Writer { get; set; }

public StreamWriter WriterGlobalLog { get; set; }

public string LogPath { get; set; }

public string LogFileName { get; set; }

public string LogFileExtension { get; set; }

public string LogFile { get { return LogFileName + LogFileExtension; } }

public string LogFullPath { get { return Path.Combine(LogPath, LogFile); } }

public bool LogExists { get { return File.Exists(LogFullPath); } }

public void WriteLineToLog(String inLogMessage)

{
WriteToLog(inLogMessage + Environment.NewLine);

}
public void WriteToLog(String inLogMessage)

{
if (!Directory.Exists(LogPath))

{
Directory.CreateDirectory(LogPath);

}
using (Writer = new StreamWriter(LogFullPath, true))

{

Writer.Write(inLogMessage);

}

}
public static void WriteLine(String inLogMessage)

{

Instance.WriteLineToLog(inLogMessage);

}
public static void Write(String inLogMessage)

{

Instance.WriteToLog(inLogMessage);

}

}

}

=============================================

WRITING(CALLING THE CLASS) THE LOG:

PCardAutomation.PCardLogger.Instance.LogFileName = "Global_PCardLog_" + DateTime.Now.ToString("yyyyMMdd"); ;

PCardAutomation.PCardLogger.Write(DateTime.Now + Environment.NewLine);

PCardAutomation.PCardLogger.Write("******************************" + Environment.NewLine);

PCardAutomation.PCardLogger.Write("******************************" + Environment.NewLine);

PCardAutomation.PCardLogger.Write("ANNUAL CARD :" + Environment.NewLine);

PCardAutomation.PCardLogger.Write("******************************" + Environment.NewLine);

PCardAutomation.PCardLogger.Write("******************************" + Environment.NewLine);

PCardAutomation.PCardLogger.Write("" + Environment.NewLine);

PCardAutomation.PCardLogger.Write(ex.ToString() + Environment.NewLine);

PCardAutomation.PCardLogger.Write("" + Environment.NewLine);

PCardAutomation.PCardLogger.Write("******************************" + Environment.NewLine);

PCardAutomation.PCardLogger.Write("******************************" + Environment.NewLine);

PCardAutomation.PCardLogger.Write("" + Environment.NewLine);