public class AnsiColorTerminalAppender : AppenderSkeleton

Public Class AnsiColorTerminalAppender
	Inherits AppenderSkeleton

public ref class AnsiColorTerminalAppender : public AppenderSkeleton

type AnsiColorTerminalAppender =  
    class
        inherit AppenderSkeleton
    end

The AnsiColorTerminalAppender type exposes the following members.

	Name	Description
	AnsiColorTerminalAppender	Initializes a new instance of the AnsiColorTerminalAppender class.

	Name	Description
	ErrorHandler	Gets or sets the IErrorHandler for this appender. (Inherited from AppenderSkeleton.)
	FilterHead	The filter chain. (Inherited from AppenderSkeleton.)
	Layout	Gets or sets the ILayout for this appender. (Inherited from AppenderSkeleton.)
	Name	Gets or sets the name of this appender. (Inherited from AppenderSkeleton.)
	RequiresLayout	This appender requires a log4net.Layout to be set. (Overrides AppenderSkeletonRequiresLayout.)
	Target	Target is the value of the console output stream.
	Threshold	Gets or sets the threshold Level of this appender. (Inherited from AppenderSkeleton.)

	Name	Description
	ActivateOptions	Initialize the options for this appender (Overrides AppenderSkeletonActivateOptions.)
	AddFilter	Adds a filter to the end of the filter chain. (Inherited from AppenderSkeleton.)
	AddMapping	Add a mapping of level to color
	Append(LoggingEvent)	This method is called by the DoAppend(LoggingEvent) method. (Overrides AppenderSkeletonAppend(LoggingEvent).)
	Append(LoggingEvent)	Append a bulk array of logging events. (Inherited from AppenderSkeleton.)
	ClearFilters	Clears the filter list for this appender. (Inherited from AppenderSkeleton.)
	Close	Closes the appender and release resources. (Inherited from AppenderSkeleton.)
	DoAppend(LoggingEvent)	Performs threshold checks and invokes filters before delegating actual logging to the subclasses specific [M:Append(LoggingEvent)] method. (Inherited from AppenderSkeleton.)
	DoAppend(LoggingEvent)	Performs threshold checks and invokes filters before delegating actual logging to the subclasses specific [M:Append(LoggingEvent[])] method. (Inherited from AppenderSkeleton.)
	Equals	Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
	FilterEvent	Test if the logging event should we output by this appender (Inherited from AppenderSkeleton.)
	Finalize	Finalizes this appender by calling the implementation's Close method. (Inherited from AppenderSkeleton.)
	Flush	Flushes any buffered log data. (Inherited from AppenderSkeleton.)
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	IsAsSevereAsThreshold	Checks if the message level is below this appender's threshold. (Inherited from AppenderSkeleton.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	OnClose	Is called when the appender is closed. Derived classes should override this method if resources need to be released. (Inherited from AppenderSkeleton.)
	PreAppendCheck	Called before [M:Append(LoggingEvent)] as a precondition. (Inherited from AppenderSkeleton.)
	RenderLoggingEvent(LoggingEvent)	Renders the LoggingEvent to a string. (Inherited from AppenderSkeleton.)
	RenderLoggingEvent(TextWriter, LoggingEvent)	Renders the LoggingEvent to a string. (Inherited from AppenderSkeleton.)
	ToString	Returns a String that represents the current Object. (Inherited from Object.)

	Name	Description
	ConsoleError	The Target to use when writing to the Console standard error output stream.
	ConsoleOut	The Target to use when writing to the Console standard output stream.

AnsiColorTerminalAppender appends log events to the standard output stream or the error output stream using a layout specified by the user. It also allows the color of a specific level of message to be set.

Note
This appender expects the terminal to understand the VT100 control set in order to interpret the color codes. If the terminal or console does not understand the control codes the behavior is not defined.

By default, all output is written to the console's standard output stream. The Target property can be set to direct the output to the error stream.

NOTE: This appender writes each message to the System.Console.Out or System.Console.Error that is set at the time the event is appended. Therefore it is possible to programmatically redirect the output of this appender (for example NUnit does this to capture program output). While this is the desired behavior of this appender it may have security implications in your application.

When configuring the ANSI colored terminal appender, a mapping should be specified to map a logging level to a color. For example:

<mapping><level value="ERROR" /><foreColor value="White" /><backColor value="Red" /><attributes value="Bright,Underscore" /></mapping><mapping><level value="DEBUG" /><backColor value="Green" /></mapping>

The Level is the standard log4net logging level and ForeColor and BackColor can be any of the following values:

• Blue -
• Green -
• Red -
• White -
• Yellow -
• Purple -
• Cyan -

The attributes can be any combination of the following:

• Bright - foreground is brighter
• Dim - foreground is dimmer
• Underscore - message is underlined
• Blink - foreground is blinking (does not work on all terminals)
• Reverse - foreground and background are reversed
• Hidden - output is hidden
• Strikethrough - message has a line through it

Reference