Implementation of Nested Diagnostic Contexts.

For a list of all members of this type, see NDC Members.

System.Object
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Thread Safety

This type is safe for multithreaded operations.

Remarks

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The NDC is deprecated and has been replaced by the Stacks. The current NDC implementation forwards to the ThreadContext.Stacks["NDC"].

A Nested Diagnostic Context, or NDC in short, is an instrument to distinguish interleaved log output from different sources. Log output is typically interleaved when a server handles multiple clients near-simultaneously.

Interleaved log output can still be meaningful if each log entry from different contexts had a distinctive stamp. This is where NDCs come into play.

Note that NDCs are managed on a per thread basis. The NDC class is made up of static methods that operate on the context of the calling thread.

Example

How to push a message into the context

[C#]
using(NDC.Push("my context message"))
{
    ... all log calls will have 'my context message' included ...

} // at the end of the using block the message is automatically removed 

Requirements

Namespace: log4net

Assembly: log4net (in log4net.dll)

See Also

NDC Members | log4net Namespace

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