How to use Microsoft Enterprise Library in c#

Step 1:

First Download Microsoft Enterprise Library 5.0
http://www.microsoft.com/en-us/download/details.aspx?id=15104

Step 2:

Install Enterprise Library 5.0 in your system.

Step 3:

Create a test project named TestEnterpriseLibrary

Step 4:

Add following reference to your project

Microsoft.Practices.EnterpriseLibrary.Logging 

Step 5:

Add App.config file in your project 

Step 6:

Right click on app file and click on Edit Enterprise Library V5 Configuration

Step 7:

Go to Block then Add Logging Settings 

Step 8:

Expand the Logging Settings and do the following

Step 9:

Step 10:

Step 11:

Step 12:

Add Logging Filter 
If All Logging Enabled is set to true, log will write on file otherwise no log will maintain.  

Step 13:

using System;
using System.Diagnostics;
using Microsoft.Practices.EnterpriseLibrary.Logging;

namespace TestEnterpriseLibrary
{

    //********************************************************************************************************************************
    //                                                  Class:Log
    //********************************************************************************************************************************
    //                                     M O D I F I C A T I O N   M I L E S T O N E S
    // -------------------------------------------------------------------------------------------------------------------------------
    //  Date             |  Created By          | Description
    // --------+-------------------+--------------------------------------------------------------------------------------------------
    // Apr 02, 2013      | Kaushik Kumar Mistry | This Class is used to call the Interaction logic for Log
    //*********************************************************************************************************************************

    /// <summary>
    ///  This Class is used to call the Interaction logic for Log
    /// </summary>
    /// <Developer>Kaushik Kumar Mistry</Developer>
    /// <DateCreated>02 April 2012</DateCreated>
    public static class Log
    {

        public static void WriteException(Exception ex)
        {
            if (Logger.IsLoggingEnabled())
            {
                StackTrace stackTrace = new StackTrace(ex, true);   // Get call stack
                StackFrame[] stackFrames = stackTrace.GetFrames();  // Get method calls (frames)

                // write call stack method names
                foreach (StackFrame stackFrame in stackFrames)
                {
                    LogEntry loggerEntry = new LogEntry();
                    loggerEntry.TimeStamp = DateTime.Now;
                    loggerEntry.Message = String.Format("File Name: {0} Method: {1} Line: {2} Column: {3} Exception:{4}", stackFrame.GetFileName(), stackFrame.GetMethod().Name, stackFrame.GetFileColumnNumber(), stackFrame.GetFileLineNumber(), ex.ToString());
                    Logger.Write(loggerEntry);
                }
            }
        }

        public static void WriteException(Exception ex,String title)
        {
            if (Logger.IsLoggingEnabled())
            {
                StackTrace stackTrace = new StackTrace(ex, true);   // Get call stack
                StackFrame[] stackFrames = stackTrace.GetFrames();  // Get method calls (frames)

                // write call stack method names
                foreach (StackFrame stackFrame in stackFrames)
                {
                    LogEntry loggerEntry = new LogEntry();
                    loggerEntry.Title = title;
                    loggerEntry.TimeStamp = DateTime.Now;
                    loggerEntry.Message = String.Format("File Name: {0} Method: {1} Line: {2} Column: {3} Exception:{4}", stackFrame.GetFileName(), stackFrame.GetMethod().Name, stackFrame.GetFileColumnNumber(), stackFrame.GetFileLineNumber(), ex.ToString());
                    Logger.Write(loggerEntry);
                }
            }
        }
    }
}

******************************************************************


using System;

namespace TestEnterpriseLibrary
{
    class Program
    {
        static void Main(string[] args)
        {
            try
            {
                int divideBy = 0;
                int x = 1 / divideBy;
            }
            catch (Exception ex)
            {
                Log.WriteException(ex);
            }
            Console.Read();
        }
    }
}

******************************************************************


<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <configSections>
        <section name="loggingConfiguration" type="Microsoft.Practices.EnterpriseLibrary.Logging.Configuration.LoggingSettings, Microsoft.Practices.EnterpriseLibrary.Logging, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="true" />
    </configSections>
    <loggingConfiguration name="" tracingEnabled="true" defaultCategory="General">
        <listeners>
            <add name="Event Log Listener" type="Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.FormattedEventLogTraceListener, Microsoft.Practices.EnterpriseLibrary.Logging, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
                listenerDataType="Microsoft.Practices.EnterpriseLibrary.Logging.Configuration.FormattedEventLogTraceListenerData, Microsoft.Practices.EnterpriseLibrary.Logging, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
                source="Enterprise Library Logging" formatter="Text Formatter"
                log="" machineName="." traceOutputOptions="None" />
            <add name="Flat File Trace Listener" type="Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.FlatFileTraceListener, Microsoft.Practices.EnterpriseLibrary.Logging, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
                listenerDataType="Microsoft.Practices.EnterpriseLibrary.Logging.Configuration.FlatFileTraceListenerData, Microsoft.Practices.EnterpriseLibrary.Logging, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
                fileName="C:\trace.log" formatter="Text Formatter" traceOutputOptions="DateTime" />
        </listeners>
        <formatters>
            <add type="Microsoft.Practices.EnterpriseLibrary.Logging.Formatters.TextFormatter, Microsoft.Practices.EnterpriseLibrary.Logging, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
                template="Timestamp: {timestamp}{newline}&#xA;Message: {message}{newline}&#xA;Category: {category}{newline}&#xA;Priority: {priority}{newline}&#xA;EventId: {eventid}{newline}&#xA;Severity: {severity}{newline}&#xA;Title:{title}{newline}&#xA;Machine: {localMachine}{newline}&#xA;App Domain: {localAppDomain}{newline}&#xA;ProcessId: {localProcessId}{newline}&#xA;Process Name: {localProcessName}{newline}&#xA;Thread Name: {threadName}{newline}&#xA;Win32 ThreadId:{win32ThreadId}{newline}&#xA;Extended Properties: {dictionary({key} - {value}{newline})}"
                name="Text Formatter" />
        </formatters>
        <logFilters>
            <add type="Microsoft.Practices.EnterpriseLibrary.Logging.Filters.LogEnabledFilter, Microsoft.Practices.EnterpriseLibrary.Logging, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
                enabled="true" name="Logging Enabled Filter" />
        </logFilters>
        <categorySources>
            <add switchValue="All" name="General">
                <listeners>
                    <add name="Flat File Trace Listener" />
                </listeners>
            </add>
        </categorySources>
        <specialSources>
            <allEvents switchValue="All" name="All Events" />
            <notProcessed switchValue="All" name="Unprocessed Category" />
            <errors switchValue="All" name="Logging Errors &amp; Warnings">
                <listeners>
                    <add name="Event Log Listener" />
                    <add name="Flat File Trace Listener" />
                </listeners>
            </errors>
        </specialSources>
    </loggingConfiguration>
</configuration>