How to replace log4net with Nlog RSS

• • Reply
  Ravi_Rt

  Member

  9 Points

  45 Posts

  How to replace log4net with Nlog

  Dec 27, 2011 12:35 PM|Ravi_Rt|LINK

  Hi, I was using log4net in framwork 2.0, and it was working fine. Now i am building a app in framwork 4.0 and it is giving an error.

  This is the code i am using.

  public class DBHelper : IDisposable
      {
  
         private static readonly log4net.ILog log = log4net.LogManager.GetLogger(typeof(DBHelper));
          private const string EDK = "11d50a3a";
          private static Hashtable connStrings = new Hashtable();
          private const bool m_bUseDummyReader = true;
          DbTransaction transaction;
          IDbConnection connection;        
  
          private string databaseName;
          private Database CurrDB;
  
          cfsEncryption cfsEncrypt = new cfsEncryption();
  
          public DBHelper(string strDB)
          {            
              Init(strDB, IsolationLevel.ReadCommitted);
          }
          private void Init(string strDB, IsolationLevel iso)
          {
  
              databaseName = strDB;
              try
              {
                  CurrDB = DatabaseFactory.CreateDatabase(strDB);
                  connection = CurrDB.CreateConnection();
                  connection.Open();
                  transaction = (DbTransaction)connection.BeginTransaction();
  
              }
              catch (Exception ex)
              {
                  if ((log.IsErrorEnabled))
                      log.Error(string.Format(System.Globalization.CultureInfo.CurrentCulture,
                          "Connection to DB ->{0} Failed", strDB), ex);
  
                  throw;
              }
          }

  Harry
• • Reply
  markfitzme

  All-Star

  26071 Points

  5892 Posts

  Re: How to replace log4net with Nlog

  Dec 27, 2011 12:36 PM|markfitzme|LINK

  Can you also post the error that you are receiving?

  Don't forget to mark useful responses as Answer if they helped you towards a solution.
• • Reply
  Ravi_Rt

  Member

  9 Points

  45 Posts

  Re: How to replace log4net with Nlog

  Dec 27, 2011 12:40 PM|Ravi_Rt|LINK

  Could not load file or assembly 'log4net' or one of its dependencies. An attempt was made to load a program with an incorrect format.

  Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
  
  Exception Details: System.BadImageFormatException: Could not load file or assembly 'log4net' or one of its dependencies. An attempt was made to load a program with an incorrect format.
  
  Source Error:
  
  

  An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

  
  Assembly Load Trace: The following information can be helpful to determine why the assembly 'log4net' could not be loaded.
  
  

  WRN: Assembly binding logging is turned OFF. To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1. Note: There is some performance penalty associated with assembly bind failure logging. To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].

  
  Stack Trace:
  
  

  [BadImageFormatException: Could not load file or assembly 'log4net' or one of its dependencies. An attempt was made to load a program with an incorrect format.] System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks) +0 System.Reflection.RuntimeAssembly.nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks) +39 System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName assemblyRef, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection, Boolean suppressSecurityChecks) +132 System.Reflection.RuntimeAssembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) +144 System.Reflection.Assembly.Load(String assemblyString) +28 System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +46 [ConfigurationErrorsException: Could not load file or assembly 'log4net' or one of its dependencies. An attempt was made to load a program with an incorrect format.] System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +618 System.Web.Configuration.CompilationSection.LoadAllAssembliesFromAppDomainBinDirectory() +209 System.Web.Configuration.CompilationSection.LoadAssembly(AssemblyInfo ai) +130 System.Web.Compilation.BuildManager.GetReferencedAssemblies(CompilationSection compConfig) +178 System.Web.Compilation.BuildManager.GetPreStartInitMethodsFromReferencedAssemblies() +94 System.Web.Compilation.BuildManager.CallPreStartInitMethods() +332 System.Web.Hosting.HostingEnvironment.Initialize(ApplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters, PolicyLevel policyLevel, Exception appDomainCreationException) +677 [HttpException (0x80004005): Could not load file or assembly 'log4net' or one of its dependencies. An attempt was made to load a program with an incorrect format.] System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +9078892 System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +97 System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +256

  Harry
• • Reply
  deepdoon

  Member

  20 Points

  11 Posts

  Re: How to replace log4net with Nlog

  Dec 27, 2011 01:18 PM|deepdoon|LINK

  Ravi_Rt

  Hi, I was using log4net in framwork 2.0, and it was working fine. Now i am building a app in framwork 4.0 and it is giving an error.

  This is the code i am using.

  public class DBHelper : IDisposable
      {
  
         private static readonly log4net.ILog log = log4net.LogManager.GetLogger(typeof(DBHelper));
          private const string EDK = "11d50a3a";
          private static Hashtable connStrings = new Hashtable();
          private const bool m_bUseDummyReader = true;
          DbTransaction transaction;
          IDbConnection connection;        
  
          private string databaseName;
          private Database CurrDB;
  
          cfsEncryption cfsEncrypt = new cfsEncryption();
  
          public DBHelper(string strDB)
          {            
              Init(strDB, IsolationLevel.ReadCommitted);
          }
          private void Init(string strDB, IsolationLevel iso)
          {
  
              databaseName = strDB;
              try
              {
                  CurrDB = DatabaseFactory.CreateDatabase(strDB);
                  connection = CurrDB.CreateConnection();
                  connection.Open();
                  transaction = (DbTransaction)connection.BeginTransaction();
  
              }
              catch (Exception ex)
              {
                  if ((log.IsErrorEnabled))
                      log.Error(string.Format(System.Globalization.CultureInfo.CurrentCulture,
                          "Connection to DB ->{0} Failed", strDB), ex);
  
                  throw;
              }
          }

  Just replace  

               "private static readonly log4net.ILog log = log4net.LogManager.GetLogger(typeof(DBHelper));"

  BY

               "private static readonly NLog.Logger log = NLog.LogManager.GetLogger("DBHelper", typeof(DBHelper));"

  and hurray your problem is solved.

  D E E P