/// <summary>
		/// Logs a formatted message string with the <c>WARN</c> level.
		/// </summary>
		/// <param name="format">A String containing zero or more format items</param>
		/// <param name="arg0">An Object to format</param>
		/// <param name="arg1">An Object to format</param>
		/// <remarks>
		/// <para>
		/// The message is formatted using the <see cref="String.Format(IFormatProvider, string, object[])"/> method. See
		/// <c>String.Format</c> for details of the syntax of the format string and the behavior
		/// of the formatting.
		/// </para>
		/// <para>
		/// The string is formatted using the <see cref="CultureInfo.InvariantCulture"/>
		/// format provider. To specify a localized provider use the
		/// <see cref="WarnFormat(IFormatProvider,string,object[])"/> method.
		/// </para>
		/// <para>
		/// This method does not take an <see cref="Exception"/> object to include in the
		/// log event. To pass an <see cref="Exception"/> use one of the <see cref="Warn(object)"/>
		/// methods instead.
		/// </para>
		/// </remarks>
		virtual public void WarnFormat(string format, object arg0, object arg1) 
		{
			if (IsWarnEnabled)
			{
				Logger.Log(ThisDeclaringType, m_levelWarn, new SystemStringFormat(CultureInfo.InvariantCulture, format, new object[] { arg0, arg1 }), null);
			}
		}

		/// <summary>
		/// Logs a formatted message string with the <c>WARN</c> level.
		/// </summary>
		/// <param name="format">A String containing zero or more format items</param>
		/// <param name="arg0">An Object to format</param>
		/// <param name="arg1">An Object to format</param>
		/// <param name="arg2">An Object to format</param>
		/// <remarks>
		/// <para>
		/// The message is formatted using the <see cref="String.Format(IFormatProvider, string, object[])"/> method. See
		/// <c>String.Format</c> for details of the syntax of the format string and the behavior
		/// of the formatting.
		/// </para>
		/// <para>
		/// The string is formatted using the <see cref="CultureInfo.InvariantCulture"/>
		/// format provider. To specify a localized provider use the
		/// <see cref="WarnFormat(IFormatProvider,string,object[])"/> method.
		/// </para>
		/// <para>
		/// This method does not take an <see cref="Exception"/> object to include in the
		/// log event. To pass an <see cref="Exception"/> use one of the <see cref="Warn(object)"/>
		/// methods instead.
		/// </para>
		/// </remarks>
		virtual public void WarnFormat(string format, object arg0, object arg1, object arg2) 
		{
			if (IsWarnEnabled)
			{
				Logger.Log(ThisDeclaringType, m_levelWarn, new SystemStringFormat(CultureInfo.InvariantCulture, format, new object[] { arg0, arg1, arg2 }), null);
			}
		}

		/// <summary>
		/// Logs a formatted message string with the <c>WARN</c> level.
		/// </summary>
		/// <param name="provider">An <see cref="IFormatProvider"/> that supplies culture-specific formatting information</param>
		/// <param name="format">A String containing zero or more format items</param>
		/// <param name="args">An Object array containing zero or more objects to format</param>
		/// <remarks>
		/// <para>
		/// The message is formatted using the <see cref="String.Format(IFormatProvider, string, object[])"/> method. See
		/// <c>String.Format</c> for details of the syntax of the format string and the behavior
		/// of the formatting.
		/// </para>
		/// <para>
		/// This method does not take an <see cref="Exception"/> object to include in the
		/// log event. To pass an <see cref="Exception"/> use one of the <see cref="Warn(object)"/>
		/// methods instead.
		/// </para>
		/// </remarks>
		virtual public void WarnFormat(IFormatProvider provider, string format, params object[] args) 
		{
			if (IsWarnEnabled)
			{
				Logger.Log(ThisDeclaringType, m_levelWarn, new SystemStringFormat(provider, format, args), null);
			}
		}

		/// <summary>
		/// Logs a message object with the <c>ERROR</c> level.
		/// </summary>
		/// <param name="message">The message object to log.</param>
		/// <remarks>
		/// <para>
		/// This method first checks if this logger is <c>ERROR</c>
		/// enabled by comparing the level of this logger with the 
		/// <c>ERROR</c> level. If this logger is
		/// <c>ERROR</c> enabled, then it converts the message object
		/// (passed as parameter) to a string by invoking the appropriate
		/// <see cref="log4net.ObjectRenderer.IObjectRenderer"/>. It then 
		/// proceeds to call all the registered appenders in this logger and 
		/// also higher in the hierarchy depending on the value of the 
		/// additivity flag.
		/// </para>
		/// <para>
		/// <b>WARNING</b> Note that passing an <see cref="Exception"/> to this
		/// method will print the name of the <see cref="Exception"/> but no
		/// stack trace. To print a stack trace use the 
		/// <see cref="Error(object,Exception)"/> form instead.
		/// </para>
		/// </remarks>
		virtual public void Error(object message) 
		{
			Logger.Log(ThisDeclaringType, m_levelError, message, null);
		}

		/// <summary>
		/// Logs a message object with the <c>ERROR</c> level
		/// </summary>
		/// <param name="message">The message object to log.</param>
		/// <param name="exception">The exception to log, including its stack trace.</param>
		/// <remarks>
		/// <para>
		/// Logs a message object with the <c>ERROR</c> level including
		/// the stack trace of the <see cref="Exception"/> <paramref name="exception"/> 
		/// passed as a parameter.
		/// </para>
		/// <para>
		/// See the <see cref="Error(object)"/> form for more detailed information.
		/// </para>
		/// </remarks>
		/// <seealso cref="Error(object)"/>
		virtual public void Error(object message, Exception exception) 
		{
			Logger.Log(ThisDeclaringType, m_levelError, message, exception);
		}

		/// <summary>
		/// Logs a formatted message string with the <c>ERROR</c> level.
		/// </summary>
		/// <param name="format">A String containing zero or more format items</param>
		/// <param name="args">An Object array containing zero or more objects to format</param>
		/// <remarks>
		/// <para>
		/// The message is formatted using the <see cref="String.Format(IFormatProvider, string, object[])"/> method. See
		/// <c>String.Format</c> for details of the syntax of the format string and the behavior
		/// of the formatting.
		/// </para>
		/// <para>
		/// The string is formatted using the <see cref="CultureInfo.InvariantCulture"/>
		/// format provider. To specify a localized provider use the
		/// <see cref="ErrorFormat(IFormatProvider,string,object[])"/> method.
		/// </para>
		/// <para>
		/// This method does not take an <see cref="Exception"/> object to include in the
		/// log event. To pass an <see cref="Exception"/> use one of the <see cref="Error(object)"/>
		/// methods instead.
		/// </para>
		/// </remarks>
		virtual public void ErrorFormat(string format, params object[] args) 
		{
			if (IsErrorEnabled)
			{
				Logger.Log(ThisDeclaringType, m_levelError, new SystemStringFormat(CultureInfo.InvariantCulture, format, args), null);
			}
		}

		/// <summary>
		/// Logs a formatted message string with the <c>ERROR</c> level.
		/// </summary>
		/// <param name="format">A String containing zero or more format items</param>
		/// <param name="arg0">An Object to format</param>
		/// <remarks>
		/// <para>
		/// The message is formatted using the <see cref="String.Format(IFormatProvider, string, object[])"/> method. See
		/// <c>String.Format</c> for details of the syntax of the format string and the behavior
		/// of the formatting.
		/// </para>
		/// <para>
		/// The string is formatted using the <see cref="CultureInfo.InvariantCulture"/>
		/// format provider. To specify a localized provider use the
		/// <see cref="ErrorFormat(IFormatProvider,string,object[])"/> method.
		/// </para>
		/// <para>
		/// This method does not take an <see cref="Exception"/> object to include in the
		/// log event. To pass an <see cref="Exception"/> use one of the <see cref="Error(object)"/>
		/// methods instead.
		/// </para>
		/// </remarks>
		virtual public void ErrorFormat(string format, object arg0) 
		{
			if (IsErrorEnabled)
			{
				Logger.Log(ThisDeclaringType, m_levelError, new SystemStringFormat(CultureInfo.InvariantCulture, format, new object[] { arg0 }), null);
			}
		}

		/// <summary>
		/// Logs a formatted message string with the <c>ERROR</c> level.
		/// </summary>
		/// <param name="format">A String containing zero or more format items</param>
		/// <param name="arg0">An Object to format</param>
		/// <param name="arg1">An Object to format</param>
		/// <remarks>
		/// <para>
		/// The message is formatted using the <see cref="String.Format(IFormatProvider, string, object[])"/> method. See
		/// <c>String.Format</c> for details of the syntax of the format string and the behavior
		/// of the formatting.
		/// </para>
		/// <para>
		/// The string is formatted using the <see cref="CultureInfo.InvariantCulture"/>
		/// format provider. To specify a localized provider use the
		/// <see cref="ErrorFormat(IFormatProvider,string,object[])"/> method.
		/// </para>
		/// <para>
		/// This method does not take an <see cref="Exception"/> object to include in the
		/// log event. To pass an <see cref="Exception"/> use one of the <see cref="Error(object)"/>
		/// methods instead.
		/// </para>
		/// </remarks>
		virtual public void ErrorFormat(string format, object arg0, object arg1) 
		{
			if (IsErrorEnabled)
			{
				Logger.Log(ThisDeclaringType, m_levelError, new SystemStringFormat(CultureInfo.InvariantCulture, format, new object[] { arg0, arg1 }), null);
			}
		}

		/// <summary>
		/// Logs a formatted message string with the <c>ERROR</c> level.
		/// </summary>
		/// <param name="format">A String containing zero or more format items</param>
		/// <param name="arg0">An Object to format</param>
		/// <param name="arg1">An Object to format</param>
		/// <param name="arg2">An Object to format</param>
		/// <remarks>
		/// <para>
		/// The message is formatted using the <see cref="String.Format(IFormatProvider, string, object[])"/> method. See
		/// <c>String.Format</c> for details of the syntax of the format string and the behavior
		/// of the formatting.
		/// </para>
		/// <para>
		/// The string is formatted using the <see cref="CultureInfo.InvariantCulture"/>
		/// format provider. To specify a localized provider use the
		/// <see cref="ErrorFormat(IFormatProvider,string,object[])"/> method.
		/// </para>
		/// <para>
		/// This method does not take an <see cref="Exception"/> object to include in the
		/// log event. To pass an <see cref="Exception"/> use one of the <see cref="Error(object)"/>
		/// methods instead.
		/// </para>
		/// </remarks>
		virtual public void ErrorFormat(string format, object arg0, object arg1, object arg2) 
		{
			if (IsErrorEnabled)
			{
				Logger.Log(ThisDeclaringType, m_levelError, new SystemStringFormat(CultureInfo.InvariantCulture, format, new object[] { arg0, arg1, arg2 }), null);
			}
		}

		/// <summary>
		/// Logs a formatted message string with the <c>ERROR</c> level.
		/// </summary>
		/// <param name="provider">An <see cref="IFormatProvider"/> that supplies culture-specific formatting information</param>
		/// <param name="format">A String containing zero or more format items</param>
		/// <param name="args">An Object array containing zero or more objects to format</param>
		/// <remarks>
		/// <para>
		/// The message is formatted using the <see cref="String.Format(IFormatProvider, string, object[])"/> method. See
		/// <c>String.Format</c> for details of the syntax of the format string and the behavior
		/// of the formatting.
		/// </para>
		/// <para>
		/// This method does not take an <see cref="Exception"/> object to include in the
		/// log event. To pass an <see cref="Exception"/> use one of the <see cref="Error(object)"/>
		/// methods instead.
		/// </para>
		/// </remarks>
		virtual public void ErrorFormat(IFormatProvider provider, string format, params object[] args) 
		{
			if (IsErrorEnabled)
			{
				Logger.Log(ThisDeclaringType, m_levelError, new SystemStringFormat(provider, format, args), null);
			}
		}

		/// <summary>
		/// Logs a message object with the <c>FATAL</c> level.
		/// </summary>
		/// <param name="message">The message object to log.</param>
		/// <remarks>
		/// <para>
		/// This method first checks if this logger is <c>FATAL</c>
		/// enabled by comparing the level of this logger with the 
		/// <c>FATAL</c> level. If this logger is
		/// <c>FATAL</c> enabled, then it converts the message object
		/// (passed as parameter) to a string by invoking the appropriate
		/// <see cref="log4net.ObjectRenderer.IObjectRenderer"/>. It then 
		/// proceeds to call all the registered appenders in this logger and 
		/// also higher in the hierarchy depending on the value of the 
		/// additivity flag.
		/// </para>
		/// <para>
		/// <b>WARNING</b> Note that passing an <see cref="Exception"/> to this
		/// method will print the name of the <see cref="Exception"/> but no
		/// stack trace. To print a stack trace use the 
		/// <see cref="Fatal(object,Exception)"/> form instead.
		/// </para>
		/// </remarks>
		virtual public void Fatal(object message) 
		{
			Logger.Log(ThisDeclaringType, m_levelFatal, message, null);
		}
  
		/// <summary>
		/// Logs a message object with the <c>FATAL</c> level
		/// </summary>
		/// <param name="message">The message object to log.</param>
		/// <param name="exception">The exception to log, including its stack trace.</param>
		/// <remarks>
		/// <para>
		/// Logs a message object with the <c>FATAL</c> level including
		/// the stack trace of the <see cref="Exception"/> <paramref name="exception"/>