LogLevel Class

Defines available log levels.

Inheritance Hierarchy

SystemObject
NLogLogLevel

Namespace: NLog
Assembly: NLog (in NLog.dll) Version: 5.3.4+73d83d3161d31288ca5c554cc50d27b6bed5f28b

Syntax

Copy

[TypeConverterAttribute(typeof(LogLevelTypeConverter))]
public sealed class LogLevel : IComparable<LogLevel>, 
	IComparable, IEquatable<LogLevel>, IFormattable

<TypeConverterAttribute(GetType(LogLevelTypeConverter))>
Public NotInheritable Class LogLevel
	Implements IComparable(Of LogLevel), IComparable, 
	IEquatable(Of LogLevel), IFormattable

Dim instance As LogLevel

[<SealedAttribute>]
[<TypeConverterAttribute(typeof(LogLevelTypeConverter))>]
type LogLevel =  
    class
        interface IComparable<LogLevel>
        interface IComparable
        interface IEquatable<LogLevel>
        interface IFormattable
    end

The LogLevel type exposes the following members.

Properties

	Name	Description
	AllLevels	Gets all the available log levels (Trace, Debug, Info, Warn, Error, Fatal, Off).
	AllLoggingLevels	Gets all the log levels that can be used to log events (Trace, Debug, Info, Warn, Error, Fatal) i.e LogLevel.Off is excluded.
	Name	Gets the name of the log level.
	Ordinal	Gets the ordinal of the log level.

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Methods

	Name	Description
	CompareTo(LogLevel)	Compares the level to the other LogLevel object.
	CompareTo(Object)	Compares the level to the other LogLevel object.
	Equals(LogLevel)	Determines whether the specified LogLevel instance is equal to this instance.
	Equals(Object)	Determines whether the specified object is equal to the current object. (Overrides ObjectEquals(Object).)
	FromOrdinal	Gets the LogLevel that corresponds to the specified ordinal.
	FromString	Returns the LogLevel that corresponds to the supplied string.
	GetHashCode	Serves as the default hash function. (Overrides ObjectGetHashCode.)
	ToString	Returns a string representation of the log level. (Overrides ObjectToString.)

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Operators

	Name	Description
	Equality	Compares two LogLevel objects and returns a value indicating whether the first one is equal to the second one.
	GreaterThan	Compares two LogLevel objects and returns a value indicating whether the first one is greater than the second one.
	GreaterThanOrEqual	Compares two LogLevel objects and returns a value indicating whether the first one is greater than or equal to the second one.
	Inequality	Compares two LogLevel objects and returns a value indicating whether the first one is not equal to the second one.
	LessThan	Compares two LogLevel objects and returns a value indicating whether the first one is less than the second one.
	LessThanOrEqual	Compares two LogLevel objects and returns a value indicating whether the first one is less than or equal to the second one.

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Fields

	Name	Description
	Debug	Debug log level (Ordinal = 1)
	Error	Error log level (Ordinal = 4)
	Fatal	Fatal log level (Ordinal = 5)
	Info	Info log level (Ordinal = 2)
	Off	Off log level (Ordinal = 6)
	Trace	Trace log level (Ordinal = 0)
	Warn	Warn log level (Ordinal = 3)

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Remarks

Log levels ordered by severity:
- Trace (Ordinal = 0) : Most verbose level. Used for development and seldom enabled in production.
- Debug (Ordinal = 1) : Debugging the application behavior from internal events of interest.
- Info (Ordinal = 2) : Information that highlights progress or application lifetime events.
- Warn (Ordinal = 3) : Warnings about validation issues or temporary failures that can be recovered.
- Error (Ordinal = 4) : Errors where functionality has failed or Exception have been caught.
- Fatal (Ordinal = 5) : Most critical level. Application is about to abort.

Reference

NLog Namespace