Class ILogExtensions

Namespace

log4net.Util

Assembly

log4net.dll

The static class ILogExtensions contains a set of widely used methods that ease the interaction with the ILog interface implementations.

public static class ILogExtensions

Inheritance

object

ILogExtensions

Inherited Members

object.GetType()

object.MemberwiseClone()

object.ToString()

object.Equals(object)

object.Equals(object, object)

object.ReferenceEquals(object, object)

object.GetHashCode()

Examples

Simple example of logging messages

        <pre><code class="lang-csharp">using log4net.Util;

ILog log = LogManager.GetLogger("application-log");

log.InfoExt("Application Start"); log.DebugExt("This is a debug message");

Remarks

This class contains methods for logging at different levels and checks the properties for determining if those logging levels are enabled in the current configuration.

Methods

DebugExt(ILog, Func<object>)

Log a message object with the Debug level.

public static void DebugExt(this ILog logger, Func<object> callback)

Parameters

logger ILog

The logger on which the message is logged.

callback Func<object>

The lambda expression that gets the object to log.

Remarks

This method first checks if this logger is INFO enabled by reading the value IsDebugEnabled property. This check happens always and does not depend on the ILog implementation. If this logger is INFO enabled, then it converts the message object (retrieved by invocation of the provided callback) to a string by invoking the appropriate 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.

WARNING Note that passing an Exception to this method will print the name of the Exception but no stack trace. To print a stack trace use the DebugExt(ILog, Func<object>, Exception) form instead.

See Also

Debug(object)

IsDebugEnabled

DebugExt(ILog, Func<object>, Exception)

Log a message object with the Debug level including the stack trace of the Exception passed as a parameter.

public static void DebugExt(this ILog logger, Func<object> callback, Exception exception)

Parameters

logger ILog

The logger on which the message is logged.

callback Func<object>

The lambda expression that gets the object to log.

exception Exception

The exception to log, including its stack trace.

Remarks

See the DebugExt(ILog, object) form for more detailed information.

See Also

Debug(object)

IsDebugEnabled

DebugExt(ILog, object)

Log a message object with the Debug level.

public static void DebugExt(this ILog logger, object message)

Parameters

logger ILog

The logger on which the message is logged.

message object

The message object to log.

Remarks

This method first checks if this logger is INFO enabled by reading the value IsDebugEnabled property. This check happens always and does not depend on the ILog implementation. If this logger is INFO enabled, then it converts the message object (passed as parameter) to a string by invoking the appropriate 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.

WARNING Note that passing an Exception to this method will print the name of the Exception but no stack trace. To print a stack trace use the DebugExt(ILog, object, Exception) form instead.

See Also

Debug(object)

IsDebugEnabled

DebugExt(ILog, object, Exception)

Log a message object with the Debug level including the stack trace of the Exception passed as a parameter.

public static void DebugExt(this ILog logger, object message, Exception exception)

Parameters

logger ILog

The logger on which the message is logged.

message object

The message object to log.

exception Exception

The exception to log, including its stack trace.

Remarks

See the DebugExt(ILog, object) form for more detailed information.

See Also

Debug(object)

IsDebugEnabled

DebugFormatExt(ILog, IFormatProvider, string, params object[])

Logs a formatted message string with the Debug level.

public static void DebugFormatExt(this ILog logger, IFormatProvider provider, string format, params object[] args)

Parameters

logger ILog

The logger on which the message is logged.

provider IFormatProvider

An IFormatProvider that supplies culture-specific formatting information

format string

A String containing zero or more format items

args object[]

An Object array containing zero or more objects to format

Remarks

The message is formatted using the String.Format method. See Format(string, params object[]) for details of the syntax of the format string and the behavior of the formatting.

This method does not take an Exception object to include in the log event. To pass an Exception use one of the DebugExt(ILog, object, Exception) methods instead.

See Also

Debug(object)

IsDebugEnabled

DebugFormatExt(ILog, string, object)

Logs a formatted message string with the Debug level.

public static void DebugFormatExt(this ILog logger, string format, object arg0)

Parameters

logger ILog

The logger on which the message is logged.

format string

A String containing zero or more format items

arg0 object

An Object to format

Remarks

The message is formatted using the String.Format method. See Format(string, params object[]) for details of the syntax of the format string and the behavior of the formatting.

This method does not take an Exception object to include in the log event. To pass an Exception use one of the DebugExt(ILog, object, Exception) methods instead.

See Also

Debug(object)

IsDebugEnabled

DebugFormatExt(ILog, string, object, object)

Logs a formatted message string with the Debug level.

public static void DebugFormatExt(this ILog logger, string format, object arg0, object arg1)

Parameters

logger ILog

The logger on which the message is logged.

format string

A String containing zero or more format items

arg0 object

An Object to format

arg1 object

An Object to format

Remarks

The message is formatted using the String.Format method. See Format(string, params object[]) for details of the syntax of the format string and the behavior of the formatting.

This method does not take an Exception object to include in the log event. To pass an Exception use one of the DebugExt(ILog, object, Exception) methods instead.

See Also

Debug(object)

IsDebugEnabled

DebugFormatExt(ILog, string, object, object, object)

Logs a formatted message string with the Debug level.

public static void DebugFormatExt(this ILog logger, string format, object arg0, object arg1, object arg2)

Parameters

logger ILog

The logger on which the message is logged.

format string

A String containing zero or more format items

arg0 object

An Object to format

arg1 object

An Object to format

arg2 object

An Object to format

Remarks

The message is formatted using the String.Format method. See Format(string, params object[]) for details of the syntax of the format string and the behavior of the formatting.

This method does not take an Exception object to include in the log event. To pass an Exception use one of the DebugExt(ILog, object, Exception) methods instead.

See Also

Debug(object)

IsDebugEnabled

DebugFormatExt(ILog, string, params object[])

Logs a formatted message string with the Debug level.

public static void DebugFormatExt(this ILog logger, string format, params object[] args)

Parameters

logger ILog

The logger on which the message is logged.

format string

A String containing zero or more format items

args object[]

An Object array containing zero or more objects to format

Remarks

The message is formatted using the String.Format method. See Format(string, params object[]) for details of the syntax of the format string and the behavior of the formatting.

This method does not take an Exception object to include in the log event. To pass an Exception use one of the DebugExt(ILog, object, Exception) methods instead.

See Also

Debug(object)

IsDebugEnabled

ErrorExt(ILog, Func<object>)

Log a message object with the Error level.

public static void ErrorExt(this ILog logger, Func<object> callback)

Parameters

logger ILog

The logger on which the message is logged.

callback Func<object>

The lambda expression that gets the object to log.

Remarks

This method first checks if this logger is ERROR enabled by reading the value IsErrorEnabled property. This check happens always and does not depend on the ILog implementation. If this logger is ERROR enabled, then it converts the message object (retrieved by invocation of the provided callback) to a string by invoking the appropriate 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.

WARNING Note that passing an Exception to this method will print the name of the Exception but no stack trace. To print a stack trace use the ErrorExt(ILog, Func<object>, Exception) form instead.

See Also

Error(object)

IsErrorEnabled

ErrorExt(ILog, Func<object>, Exception)

Log a message object with the Error level including the stack trace of the Exception passed as a parameter.

public static void ErrorExt(this ILog logger, Func<object> callback, Exception exception)

Parameters

logger ILog

The logger on which the message is logged.

callback Func<object>

The lambda expression that gets the object to log.

exception Exception

The exception to log, including its stack trace.

Remarks

See the ErrorExt(ILog, object) form for more detailed information.

See Also

Error(object)

IsErrorEnabled

ErrorExt(ILog, object)

Log a message object with the Error level.

public static void ErrorExt(this ILog logger, object message)

Parameters

logger ILog

The logger on which the message is logged.

message object

The message object to log.

Remarks

This method first checks if this logger is ERROR enabled by reading the value IsErrorEnabled property. This check happens always and does not depend on the ILog implementation. If this logger is ERROR enabled, then it converts the message object (passed as parameter) to a string by invoking the appropriate 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.

WARNING Note that passing an Exception to this method will print the name of the Exception but no stack trace. To print a stack trace use the ErrorExt(ILog, object, Exception) form instead.

See Also

Error(object)

IsErrorEnabled

ErrorExt(ILog, object, Exception)

Log a message object with the Error level including the stack trace of the Exception passed as a parameter.

public static void ErrorExt(this ILog logger, object message, Exception exception)

Parameters

logger ILog

The logger on which the message is logged.

message object

The message object to log.

exception Exception

The exception to log, including its stack trace.

Remarks

See the ErrorExt(ILog, object) form for more detailed information.

See Also

Error(object)

IsErrorEnabled

ErrorFormatExt(ILog, IFormatProvider, string, params object[])

Logs a formatted message string with the Error level.

public static void ErrorFormatExt(this ILog logger, IFormatProvider provider, string format, params object[] args)

Parameters

logger ILog

The logger on which the message is logged.

provider IFormatProvider

An IFormatProvider that supplies culture-specific formatting information

format string

A String containing zero or more format items

args object[]

An Object array containing zero or more objects to format

Remarks

The message is formatted using the String.Format method. See Format(string, params object[]) for details of the syntax of the format string and the behavior of the formatting.

This method does not take an Exception object to include in the log event. To pass an Exception use one of the ErrorExt(ILog, object, Exception) methods instead.

See Also

Error(object)

IsErrorEnabled

ErrorFormatExt(ILog, string, object)

Logs a formatted message string with the Error level.

public static void ErrorFormatExt(this ILog logger, string format, object arg0)

Parameters

logger ILog

The logger on which the message is logged.

format string

A String containing zero or more format items

arg0 object

An Object to format

Remarks

The message is formatted using the String.Format method. See Format(string, params object[]) for details of the syntax of the format string and the behavior of the formatting.

This method does not take an Exception object to include in the log event. To pass an Exception use one of the ErrorExt(ILog, object, Exception) methods instead.

See Also

Error(object)

IsErrorEnabled

ErrorFormatExt(ILog, string, object, object)

Logs a formatted message string with the Error level.

public static void ErrorFormatExt(this ILog logger, string format, object arg0, object arg1)

Parameters

logger ILog

The logger on which the message is logged.

format string

A String containing zero or more format items

arg0 object

An Object to format

arg1 object

An Object to format

Remarks

The message is formatted using the String.Format method. See Format(string, params object[]) for details of the syntax of the format string and the behavior of the formatting.

This method does not take an Exception object to include in the log event. To pass an Exception use one of the ErrorExt(ILog, object, Exception) methods instead.

See Also

Error(object)

IsErrorEnabled

ErrorFormatExt(ILog, string, object, object, object)

Logs a formatted message string with the Error level.

public static void ErrorFormatExt(this ILog logger, string format, object arg0, object arg1, object arg2)

Parameters

logger ILog

The logger on which the message is logged.

format string

A String containing zero or more format items

arg0 object

An Object to format

arg1 object

An Object to format

arg2 object

An Object to format

Remarks

The message is formatted using the String.Format method. See Format(string, params object[]) for details of the syntax of the format string and the behavior of the formatting.

This method does not take an Exception object to include in the log event. To pass an Exception use one of the ErrorExt(ILog, object, Exception) methods instead.

See Also

Error(object)

IsErrorEnabled

ErrorFormatExt(ILog, string, params object[])

Logs a formatted message string with the Error level.

public static void ErrorFormatExt(this ILog logger, string format, params object[] args)

Parameters

logger ILog

The logger on which the message is logged.

format string

A String containing zero or more format items

args object[]

An Object array containing zero or more objects to format

Remarks

The message is formatted using the String.Format method. See Format(string, params object[]) for details of the syntax of the format string and the behavior of the formatting.

This method does not take an Exception object to include in the log event. To pass an Exception use one of the ErrorExt(ILog, object, Exception) methods instead.

See Also

Error(object)

IsErrorEnabled

FatalExt(ILog, Func<object>)

Log a message object with the Fatal level.

public static void FatalExt(this ILog logger, Func<object> callback)

Parameters

logger ILog

The logger on which the message is logged.

callback Func<object>

The lambda expression that gets the object to log.

Remarks

This method first checks if this logger is FATAL enabled by reading the value IsFatalEnabled property. This check happens always and does not depend on the ILog implementation. If this logger is FATAL enabled, then it converts the message object (retrieved by invocation of the provided callback) to a string by invoking the appropriate 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.

WARNING Note that passing an Exception to this method will print the name of the Exception but no stack trace. To print a stack trace use the FatalExt(ILog, Func<object>, Exception) form instead.

See Also

Fatal(object)

IsFatalEnabled

FatalExt(ILog, Func<object>, Exception)

Log a message object with the Fatal level including the stack trace of the Exception passed as a parameter.

public static void FatalExt(this ILog logger, Func<object> callback, Exception exception)

Parameters

logger ILog

The logger on which the message is logged.

callback Func<object>

The lambda expression that gets the object to log.

exception Exception

The exception to log, including its stack trace.

Remarks

See the FatalExt(ILog, object) form for more detailed information.

See Also

Fatal(object)

IsFatalEnabled

FatalExt(ILog, object)

Log a message object with the Fatal level.

public static void FatalExt(this ILog logger, object message)

Parameters

logger ILog

The logger on which the message is logged.

message object

The message object to log.

Remarks

This method first checks if this logger is FATAL enabled by reading the value IsFatalEnabled property. This check happens always and does not depend on the ILog implementation. If this logger is FATAL enabled, then it converts the message object (passed as parameter) to a string by invoking the appropriate 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.

WARNING Note that passing an Exception to this method will print the name of the Exception but no stack trace. To print a stack trace use the FatalExt(ILog, object, Exception) form instead.

See Also

Fatal(object)

IsFatalEnabled

FatalExt(ILog, object, Exception)

Log a message object with the Fatal level including the stack trace of the Exception passed as a parameter.

public static void FatalExt(this ILog logger, object message, Exception exception)

Parameters

logger ILog

The logger on which the message is logged.

message object

The message object to log.

exception Exception

The exception to log, including its stack trace.

Remarks

See the FatalExt(ILog, object) form for more detailed information.

See Also

Fatal(object)

IsFatalEnabled

FatalFormatExt(ILog, IFormatProvider, string, params object[])

Logs a formatted message string with the Fatal level.

public static void FatalFormatExt(this ILog logger, IFormatProvider provider, string format, params object[] args)

Parameters

logger ILog

The logger on which the message is logged.

provider IFormatProvider

An IFormatProvider that supplies culture-specific formatting information

format string

A String containing zero or more format items

args object[]

An Object array containing zero or more objects to format

Remarks

The message is formatted using the String.Format method. See Format(string, params object[]) for details of the syntax of the format string and the behavior of the formatting.

This method does not take an Exception object to include in the log event. To pass an Exception use one of the FatalExt(ILog, object, Exception) methods instead.

See Also

Fatal(object)

IsFatalEnabled

FatalFormatExt(ILog, string, object)

Logs a formatted message string with the Fatal level.

public static void FatalFormatExt(this ILog logger, string format, object arg0)

Parameters

logger ILog

The logger on which the message is logged.

format string

A String containing zero or more format items

arg0 object

An Object to format

Remarks

The message is formatted using the String.Format method. See Format(string, params object[]) for details of the syntax of the format string and the behavior of the formatting.

This method does not take an Exception object to include in the log event. To pass an Exception use one of the FatalExt(ILog, object, Exception) methods instead.

See Also

Fatal(object)

IsFatalEnabled

FatalFormatExt(ILog, string, object, object)

Logs a formatted message string with the Fatal level.

public static void FatalFormatExt(this ILog logger, string format, object arg0, object arg1)

Parameters

logger ILog

The logger on which the message is logged.

format string

A String containing zero or more format items

arg0 object

An Object to format

arg1 object

An Object to format

Remarks

The message is formatted using the String.Format method. See Format(string, params object[]) for details of the syntax of the format string and the behavior of the formatting.

This method does not take an Exception object to include in the log event. To pass an Exception use one of the FatalExt(ILog, object, Exception) methods instead.

See Also

Fatal(object)

IsFatalEnabled

FatalFormatExt(ILog, string, object, object, object)

Logs a formatted message string with the Fatal level.

public static void FatalFormatExt(this ILog logger, string format, object arg0, object arg1, object arg2)

Parameters

logger ILog

The logger on which the message is logged.

format string

A String containing zero or more format items

arg0 object

An Object to format

arg1 object

An Object to format

arg2 object

An Object to format

Remarks

The message is formatted using the String.Format method. See Format(string, params object[]) for details of the syntax of the format string and the behavior of the formatting.

This method does not take an Exception object to include in the log event. To pass an Exception use one of the FatalExt(ILog, object, Exception) methods instead.

See Also

Fatal(object)

IsFatalEnabled

FatalFormatExt(ILog, string, params object[])

Logs a formatted message string with the Fatal level.

public static void FatalFormatExt(this ILog logger, string format, params object[] args)

Parameters

logger ILog

The logger on which the message is logged.

format string

A String containing zero or more format items

args object[]

An Object array containing zero or more objects to format

Remarks

The message is formatted using the String.Format method. See Format(string, params object[]) for details of the syntax of the format string and the behavior of the formatting.

This method does not take an Exception object to include in the log event. To pass an Exception use one of the FatalExt(ILog, object, Exception) methods instead.

See Also

Fatal(object)

IsFatalEnabled

InfoExt(ILog, Func<object>)

Log a message object with the Info level.

public static void InfoExt(this ILog logger, Func<object> callback)

Parameters

logger ILog

The logger on which the message is logged.

callback Func<object>

The lambda expression that gets the object to log.

Remarks

This method first checks if this logger is INFO enabled by reading the value IsInfoEnabled property. This check happens always and does not depend on the ILog implementation. If this logger is INFO enabled, then it converts the message object (retrieved by invocation of the provided callback) to a string by invoking the appropriate 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.

WARNING Note that passing an Exception to this method will print the name of the Exception but no stack trace. To print a stack trace use the InfoExt(ILog, Func<object>, Exception) form instead.

See Also

Info(object)

IsInfoEnabled

InfoExt(ILog, Func<object>, Exception)

Log a message object with the Info level including the stack trace of the Exception passed as a parameter.

public static void InfoExt(this ILog logger, Func<object> callback, Exception exception)

Parameters

logger ILog

The logger on which the message is logged.

callback Func<object>

The lambda expression that gets the object to log.

exception Exception

The exception to log, including its stack trace.

Remarks

See the InfoExt(ILog, object) form for more detailed information.

See Also

Info(object)

IsInfoEnabled

InfoExt(ILog, object)

Log a message object with the Info level.

public static void InfoExt(this ILog logger, object message)

Parameters

logger ILog

The logger on which the message is logged.

message object

The message object to log.

Remarks

This method first checks if this logger is INFO enabled by reading the value IsInfoEnabled property. This check happens always and does not depend on the ILog implementation. If this logger is INFO enabled, then it converts the message object (passed as parameter) to a string by invoking the appropriate 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.

WARNING Note that passing an Exception to this method will print the name of the Exception but no stack trace. To print a stack trace use the InfoExt(ILog, object, Exception) form instead.

See Also

Info(object)

IsInfoEnabled

InfoExt(ILog, object, Exception)

Log a message object with the Info level including the stack trace of the Exception passed as a parameter.

public static void InfoExt(this ILog logger, object message, Exception exception)

Parameters

logger ILog

The logger on which the message is logged.

message object

The message object to log.

exception Exception

The exception to log, including its stack trace.

Remarks

See the InfoExt(ILog, object) form for more detailed information.

See Also

Info(object)

IsInfoEnabled

InfoFormatExt(ILog, IFormatProvider, string, params object[])

Logs a formatted message string with the Info level.

public static void InfoFormatExt(this ILog logger, IFormatProvider provider, string format, params object[] args)

Parameters

logger ILog

The logger on which the message is logged.

provider IFormatProvider

An IFormatProvider that supplies culture-specific formatting information

format string

A String containing zero or more format items

args object[]

An Object array containing zero or more objects to format

Remarks

The message is formatted using the String.Format method. See Format(string, params object[]) for details of the syntax of the format string and the behavior of the formatting.

This method does not take an Exception object to include in the log event. To pass an Exception use one of the InfoExt(ILog, object, Exception) methods instead.

See Also

Info(object)

IsInfoEnabled

InfoFormatExt(ILog, string, object)

Logs a formatted message string with the Info level.

public static void InfoFormatExt(this ILog logger, string format, object arg0)

Parameters

logger ILog

The logger on which the message is logged.

format string

A String containing zero or more format items

arg0 object

An Object to format

Remarks

The message is formatted using the String.Format method. See Format(string, params object[]) for details of the syntax of the format string and the behavior of the formatting.

This method does not take an Exception object to include in the log event. To pass an Exception use one of the InfoExt(ILog, object, Exception) methods instead.

See Also

Info(object)

IsInfoEnabled

InfoFormatExt(ILog, string, object, object)

Logs a formatted message string with the Info level.

public static void InfoFormatExt(this ILog logger, string format, object arg0, object arg1)

Parameters

logger ILog

The logger on which the message is logged.

format string

A String containing zero or more format items

arg0 object

An Object to format

arg1 object

An Object to format

Remarks

The message is formatted using the String.Format method. See Format(string, params object[]) for details of the syntax of the format string and the behavior of the formatting.

This method does not take an Exception object to include in the log event. To pass an Exception use one of the InfoExt(ILog, object, Exception) methods instead.

See Also

Info(object)

IsInfoEnabled

InfoFormatExt(ILog, string, object, object, object)

Logs a formatted message string with the Info level.

public static void InfoFormatExt(this ILog logger, string format, object arg0, object arg1, object arg2)

Parameters

logger ILog

The logger on which the message is logged.

format string

A String containing zero or more format items

arg0 object

An Object to format

arg1 object

An Object to format

arg2 object

An Object to format

Remarks

The message is formatted using the String.Format method. See Format(string, params object[]) for details of the syntax of the format string and the behavior of the formatting.

This method does not take an Exception object to include in the log event. To pass an Exception use one of the InfoExt(ILog, object, Exception) methods instead.

See Also

Info(object)

IsInfoEnabled

InfoFormatExt(ILog, string, params object[])

Logs a formatted message string with the Info level.

public static void InfoFormatExt(this ILog logger, string format, params object[] args)

Parameters

logger ILog

The logger on which the message is logged.

format string

A String containing zero or more format items

args object[]

An Object array containing zero or more objects to format

Remarks

The message is formatted using the String.Format method. See Format(string, params object[]) for details of the syntax of the format string and the behavior of the formatting.

This method does not take an Exception object to include in the log event. To pass an Exception use one of the InfoExt(ILog, object, Exception) methods instead.

See Also

Info(object)

IsInfoEnabled

WarnExt(ILog, Func<object>)

Log a message object with the Warn level.

public static void WarnExt(this ILog logger, Func<object> callback)

Parameters

logger ILog

The logger on which the message is logged.

callback Func<object>

The lambda expression that gets the object to log.

Remarks

This method first checks if this logger is WARN enabled by reading the value IsWarnEnabled property. This check happens always and does not depend on the ILog implementation. If this logger is WARN enabled, then it converts the message object (retrieved by invocation of the provided callback) to a string by invoking the appropriate 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.

WARNING Note that passing an Exception to this method will print the name of the Exception but no stack trace. To print a stack trace use the WarnExt(ILog, Func<object>, Exception) form instead.

See Also

Warn(object)

IsWarnEnabled

WarnExt(ILog, Func<object>, Exception)

Log a message object with the Warn level including the stack trace of the Exception passed as a parameter.

public static void WarnExt(this ILog logger, Func<object> callback, Exception exception)

Parameters

logger ILog

The logger on which the message is logged.

callback Func<object>

The lambda expression that gets the object to log.

exception Exception

The exception to log, including its stack trace.

Remarks

See the WarnExt(ILog, object) form for more detailed information.

See Also

Warn(object)

IsWarnEnabled

WarnExt(ILog, object)

Log a message object with the Warn level.

public static void WarnExt(this ILog logger, object message)

Parameters

logger ILog

The logger on which the message is logged.

message object

The message object to log.

Remarks

This method first checks if this logger is WARN enabled by reading the value IsWarnEnabled property. This check happens always and does not depend on the ILog implementation. If this logger is WARN enabled, then it converts the message object (passed as parameter) to a string by invoking the appropriate 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.

WARNING Note that passing an Exception to this method will print the name of the Exception but no stack trace. To print a stack trace use the WarnExt(ILog, object, Exception) form instead.

See Also

Warn(object)

IsWarnEnabled

WarnExt(ILog, object, Exception)

Log a message object with the Warn level including the stack trace of the Exception passed as a parameter.

public static void WarnExt(this ILog logger, object message, Exception exception)

Parameters

logger ILog

The logger on which the message is logged.

message object

The message object to log.

exception Exception

The exception to log, including its stack trace.

Remarks

See the WarnExt(ILog, object) form for more detailed information.

See Also

Warn(object)

IsWarnEnabled

WarnFormatExt(ILog, IFormatProvider, string, params object[])

Logs a formatted message string with the Warn level.

public static void WarnFormatExt(this ILog logger, IFormatProvider provider, string format, params object[] args)

Parameters

logger ILog

The logger on which the message is logged.

provider IFormatProvider

An IFormatProvider that supplies culture-specific formatting information

format string

A String containing zero or more format items

args object[]

An Object array containing zero or more objects to format

Remarks

The message is formatted using the String.Format method. See Format(string, params object[]) for details of the syntax of the format string and the behavior of the formatting.

This method does not take an Exception object to include in the log event. To pass an Exception use one of the WarnExt(ILog, object, Exception) methods instead.

See Also

Warn(object)

IsWarnEnabled

WarnFormatExt(ILog, string, object)

Logs a formatted message string with the Warn level.

public static void WarnFormatExt(this ILog logger, string format, object arg0)

Parameters

logger ILog

The logger on which the message is logged.

format string

A String containing zero or more format items

arg0 object

An Object to format

Remarks

The message is formatted using the String.Format method. See Format(string, params object[]) for details of the syntax of the format string and the behavior of the formatting.

This method does not take an Exception object to include in the log event. To pass an Exception use one of the WarnExt(ILog, object, Exception) methods instead.

See Also

Warn(object)

IsWarnEnabled

WarnFormatExt(ILog, string, object, object)

Logs a formatted message string with the Warn level.

public static void WarnFormatExt(this ILog logger, string format, object arg0, object arg1)

Parameters

logger ILog

The logger on which the message is logged.

format string

A String containing zero or more format items

arg0 object

An Object to format

arg1 object

An Object to format

Remarks

The message is formatted using the String.Format method. See Format(string, params object[]) for details of the syntax of the format string and the behavior of the formatting.

This method does not take an Exception object to include in the log event. To pass an Exception use one of the WarnExt(ILog, object, Exception) methods instead.

See Also

Warn(object)

IsWarnEnabled

WarnFormatExt(ILog, string, object, object, object)

Logs a formatted message string with the Warn level.

public static void WarnFormatExt(this ILog logger, string format, object arg0, object arg1, object arg2)

Parameters

logger ILog

The logger on which the message is logged.

format string

A String containing zero or more format items

arg0 object

An Object to format

arg1 object

An Object to format

arg2 object

An Object to format

Remarks

The message is formatted using the String.Format method. See Format(string, params object[]) for details of the syntax of the format string and the behavior of the formatting.

This method does not take an Exception object to include in the log event. To pass an Exception use one of the WarnExt(ILog, object, Exception) methods instead.

See Also

Warn(object)

IsWarnEnabled

WarnFormatExt(ILog, string, params object[])

Logs a formatted message string with the Warn level.

public static void WarnFormatExt(this ILog logger, string format, params object[] args)

Parameters

logger ILog

The logger on which the message is logged.

format string

A String containing zero or more format items

args object[]

An Object array containing zero or more objects to format

Remarks

The message is formatted using the String.Format method. See Format(string, params object[]) for details of the syntax of the format string and the behavior of the formatting.

This method does not take an Exception object to include in the log event. To pass an Exception use one of the WarnExt(ILog, object, Exception) methods instead.

See Also

Warn(object)

IsWarnEnabled