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| <td class="runninghead">Apache log4net� SDK Documentation - Microsoft .NET Framework 4.0</td> |
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| <h1 class="dtH1">NDC Class</h1> |
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| <p> Implementation of Nested Diagnostic Contexts. </p> |
| <p>For a list of all members of this type, see <a href="log4net.NDCMembers.html">NDC Members</a>.</p> |
| <p> |
| <a href="ms-help://MS.NETFrameworkSDKv1.1/cpref/html/frlrfSystemObjectClassTopic.htm">System.Object</a> |
| <br />���<b>log4net.NDC</b></p> |
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| <span class="lang">[Visual�Basic]</span> |
| <br />NotInheritable�Public�Class�NDC</div> |
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| <span class="lang">[C#]</span> |
| <div>public�sealed�class�NDC</div> |
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| <H4 class="dtH4">Thread Safety</H4> |
| <P>This type is safe for multithreaded operations.</P> |
| <h4 class="dtH4">Remarks</h4> |
| <p> |
| <blockquote class="dtBlock"><b>Note</b>��� |
| <p> The NDC is deprecated and has been replaced by the <a href="log4net.ThreadContext.Stacks.html">Stacks</a>. The current NDC implementation forwards to the <code>ThreadContext.Stacks["NDC"]</code>. </p> |
| </blockquote> |
| <p> 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. </p> |
| <p> 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. </p> |
| <p> 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. </p> |
| </p> |
| <h4 class="dtH4">Example</h4> |
| <p>How to push a message into the context <pre class="code"><span class="lang">[C#] |
| </span>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 |
| </pre> |
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| <h4 class="dtH4">Requirements</h4> |
| <p> |
| <b>Namespace: </b> |
| <a href="log4net.html">log4net</a> |
| </p> |
| <p> |
| <b>Assembly: </b>log4net (in log4net.dll) |
| </p> |
| <h4 class="dtH4">See Also</h4> |
| <p> |
| <a href="log4net.NDCMembers.html">NDC Members</a> | <a href="log4net.html">log4net Namespace</a></p> |
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| <param name="Keyword" value="NDC class, about NDC class"> |
| </param> |
| </object> |
| <hr /> |
| <div id="footer"><a href='http://logging.apache.org/log4net/'>Copyright 2004-2011 The Apache Software Foundation.</a><br></br>Apache log4net, Apache and log4net are trademarks of The Apache Software Foundation.</div> |
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