ThreadContext ClassApache log4net™ SDK Documentation
The log4net Thread Context.
Inheritance Hierarchy

SystemObject
  log4netThreadContext

Namespace: log4net
Assembly: log4net (in log4net.dll) Version: 2.0.6.0-.NET 4.0
Syntax

public sealed class ThreadContext

The ThreadContext type exposes the following members.

Properties

  NameDescription
Public propertyStatic memberProperties
The thread properties map
Public propertyStatic memberStacks
The thread stacks
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Methods

  NameDescription
Public methodEquals
Determines whether the specified Object is equal to the current Object.
(Inherited from Object.)
Public methodGetHashCode
Serves as a hash function for a particular type.
(Inherited from Object.)
Public methodGetType
Gets the Type of the current instance.
(Inherited from Object.)
Public methodToString
Returns a String that represents the current Object.
(Inherited from Object.)
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Remarks

The ThreadContext provides a location for thread specific debugging information to be stored. The ThreadContext properties override any GlobalContext properties with the same name.

The thread context has a properties map and a stack. The properties and stack can be included in the output of log messages. The PatternLayout supports selecting and outputting these properties.

The Thread Context provides a diagnostic context for the current thread. This is an instrument for distinguishing interleaved log output from different sources. Log output is typically interleaved when a server handles multiple clients near-simultaneously.

The Thread Context is managed on a per thread basis.

Examples

Example of using the thread context properties to store a username.
C#
ThreadContext.Properties["user"] = userName;
log.Info("This log message has a ThreadContext Property called 'user'");
Examples

Example of how to push a message into the context stack
C#
using(ThreadContext.Stacks["NDC"].Push("my context message"))
{
    log.Info("This log message has a ThreadContext Stack message that includes 'my context message'");

} // at the end of the using block the message is automatically popped
Thread Safety

Static members of this type are safe for multi-threaded operations. Instance members of this type are safe for multi-threaded operations.
See Also

Reference