content/log4net/log4net-2.0.8/release/sdk/html/T_log4net_LogicalThreadContext.htm - logging-site - Git at Google

 <html><head><meta http-equiv="X-UA-Compatible" content="IE=edge" /><link rel="shortcut icon" href="../icons/favicon.ico" /><style type="text/css">.OH_CodeSnippetContainerTabLeftActive, .OH_CodeSnippetContainerTabLeft,.OH_CodeSnippetContainerTabLeftDisabled { }.OH_CodeSnippetContainerTabRightActive, .OH_CodeSnippetContainerTabRight,.OH_CodeSnippetContainerTabRightDisabled { }.OH_footer { }</style><link rel="stylesheet" type="text/css" href="../styles/branding.css" /><link rel="stylesheet" type="text/css" href="../styles/branding-en-US.css" /><script type="text/javascript" src="../scripts/branding.js"> </script><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>LogicalThreadContext Class</title><meta name="Language" content="en-us" /><meta name="System.Keywords" content="LogicalThreadContext class" /><meta name="System.Keywords" content="log4net.LogicalThreadContext class" /><meta name="System.Keywords" content="LogicalThreadContext class, about LogicalThreadContext class" /><meta name="Microsoft.Help.F1" content="log4net.LogicalThreadContext" /><meta name="Microsoft.Help.Id" content="T:log4net.LogicalThreadContext" /><meta name="Description" content="The log4net Logical Thread Context." /><meta name="Microsoft.Help.ContentType" content="Reference" /><meta name="BrandingAware" content="true" /><meta name="container" content="log4net" /><meta name="file" content="T_log4net_LogicalThreadContext" /><meta name="guid" content="T_log4net_LogicalThreadContext" /><link type="text/css" rel="stylesheet" href="../styles/highlight.css" /><script type="text/javascript" src="../scripts/highlight.js"> </script></head><body onload="OnLoad('cs')"><input type="hidden" id="userDataCache" class="userDataStyle" /><div class="OH_outerDiv"><div class="OH_outerContent"><table class="TitleTable"><tr><td class="OH_tdTitleColumn">LogicalThreadContext Class</td><td class="OH_tdRunningTitleColumn">Apache log4net™ SDK Documentation</td></tr></table><div id="mainSection"><div id="mainBody"><span class="introStyle"></span><div class="summary">
             The log4net Logical Thread Context.
             </div><div class="OH_CollapsibleAreaRegion"><div class="OH_regiontitle">Inheritance Hierarchy</div><div class="OH_CollapsibleArea_HrDiv"><hr class="OH_CollapsibleArea_Hr" /></div></div><div class="OH_clear"> </div><a href="http://msdn2.microsoft.com/en-us/library/e5kfa45b" target="_blank">System<span id="LST7E3295ED_0"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST7E3295ED_0?cs=.|vb=.|cpp=::|nu=.|fs=.");</script>Object</a><br />  <span class="selflink">log4net<span id="LST7E3295ED_1"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST7E3295ED_1?cs=.|vb=.|cpp=::|nu=.|fs=.");</script>LogicalThreadContext</span><br /><p> </p><strong>Namespace:</strong> <a href="N_log4net.htm">log4net</a><br /><strong>Assembly:</strong> log4net (in log4net.dll) Version: 2.0.8.0-.NET 4.0<div class="OH_CollapsibleAreaRegion"><div class="OH_regiontitle">Syntax</div><div class="OH_CollapsibleArea_HrDiv"><hr class="OH_CollapsibleArea_Hr" /></div></div><div class="OH_clear"> </div><div class="OH_CodeSnippetContainer"><div class="OH_CodeSnippetContainerTabs"><div class="OH_CodeSnippetContainerTabLeft" id="ID0EDCA_tabimgleft"> </div><div id="ID0EDCA_tab1" class="OH_CodeSnippetContainerTabFirst"><a href="#" onclick="javascript:ChangeTab('ID0EDCA','cs','1','4');return false;">C#</a></div><div id="ID0EDCA_tab2" class="OH_CodeSnippetContainerTab"><a href="#" onclick="javascript:ChangeTab('ID0EDCA','vb','2','4');return false;">VB</a></div><div id="ID0EDCA_tab3" class="OH_CodeSnippetContainerTab"><a href="#" onclick="javascript:ChangeTab('ID0EDCA','cpp','3','4');return false;">C++</a></div><div id="ID0EDCA_tab4" class="OH_CodeSnippetContainerTab"><a href="#" onclick="javascript:ChangeTab('ID0EDCA','fs','4','4');return false;">F#</a></div><div class="OH_CodeSnippetContainerTabRight" id="ID0EDCA_tabimgright"> </div></div><div class="OH_CodeSnippetContainerCodeCollection"><div class="OH_CodeSnippetToolBar"><div class="OH_CodeSnippetToolBarText"><a id="ID0EDCA_copyCode" href="#" onclick="javascript:CopyToClipboard('ID0EDCA');return false;" title="Copy">Copy</a></div></div><div id="ID0EDCA_code_Div1" class="OH_CodeSnippetContainerCode" style="display: block"><pre xml:space="preserve"><span class="keyword">public</span> <span class="keyword">sealed</span> <span class="keyword">class</span> <span class="identifier">LogicalThreadContext</span></pre></div><div id="ID0EDCA_code_Div2" class="OH_CodeSnippetContainerCode" style="display: none"><pre xml:space="preserve"><span class="keyword">Public</span> <span class="keyword">NotInheritable</span> <span class="keyword">Class</span> <span class="identifier">LogicalThreadContext</span></pre></div><div id="ID0EDCA_code_Div3" class="OH_CodeSnippetContainerCode" style="display: none"><pre xml:space="preserve"><span class="keyword">public</span> <span class="keyword">ref class</span> <span class="identifier">LogicalThreadContext</span> <span class="keyword">sealed</span></pre></div><div id="ID0EDCA_code_Div4" class="OH_CodeSnippetContainerCode" style="display: none"><pre xml:space="preserve">[&lt;<span class="identifier">SealedAttribute</span>&gt;]
 <span class="keyword">type</span> <span class="identifier">LogicalThreadContext</span> =  <span class="keyword">class</span> <span class="keyword">end</span></pre></div></div></div><script type="text/javascript">AddLanguageTabSet("ID0EDCA");</script><p>The <span class="selflink">LogicalThreadContext</span> type exposes the following members.</p><div class="OH_CollapsibleAreaRegion"><div class="OH_regiontitle">Properties</div><div class="OH_CollapsibleArea_HrDiv"><hr class="OH_CollapsibleArea_Hr" /></div></div><div class="OH_clear"> </div><table id="memberList" class="members"><tr><th class="ps_iconColumn">

 							</th><th>Name</th><th>Description</th></tr><tr data="public;static;declared;notNetfw;"><td><img src="../icons/pubproperty.gif" alt="Public property" title="Public property" /><img src="../icons/static.gif" alt="Static member" title="Static member" /></td><td><a href="P_log4net_LogicalThreadContext_Properties.htm">Properties</a></td><td><div class="summary">
             The thread properties map
             </div></td></tr><tr data="public;static;declared;notNetfw;"><td><img src="../icons/pubproperty.gif" alt="Public property" title="Public property" /><img src="../icons/static.gif" alt="Static member" title="Static member" /></td><td><a href="P_log4net_LogicalThreadContext_Stacks.htm">Stacks</a></td><td><div class="summary">
             The thread stacks
             </div></td></tr></table><a href="#mainBody">Top</a><div class="OH_CollapsibleAreaRegion"><div class="OH_regiontitle">Methods</div><div class="OH_CollapsibleArea_HrDiv"><hr class="OH_CollapsibleArea_Hr" /></div></div><div class="OH_clear"> </div><table id="memberList" class="members"><tr><th class="ps_iconColumn">

 							</th><th>Name</th><th>Description</th></tr><tr data="public;inherited;notNetfw;"><td><img src="../icons/pubmethod.gif" alt="Public method" title="Public method" /></td><td><a href="http://msdn2.microsoft.com/en-us/library/bsc2ak47" target="_blank">Equals</a></td><td><div class="summary">
                     Determines whether the specified <a href="http://msdn2.microsoft.com/en-us/library/e5kfa45b" target="_blank">Object</a> is equal to the current <a href="http://msdn2.microsoft.com/en-us/library/e5kfa45b" target="_blank">Object</a>.
                 </div> (Inherited from <a href="http://msdn2.microsoft.com/en-us/library/e5kfa45b" target="_blank">Object</a>.)</td></tr><tr data="public;inherited;notNetfw;"><td><img src="../icons/pubmethod.gif" alt="Public method" title="Public method" /></td><td><a href="http://msdn2.microsoft.com/en-us/library/zdee4b3y" target="_blank">GetHashCode</a></td><td><div class="summary">
                     Serves as a hash function for a particular type.
                 </div> (Inherited from <a href="http://msdn2.microsoft.com/en-us/library/e5kfa45b" target="_blank">Object</a>.)</td></tr><tr data="public;inherited;notNetfw;"><td><img src="../icons/pubmethod.gif" alt="Public method" title="Public method" /></td><td><a href="http://msdn2.microsoft.com/en-us/library/dfwy45w9" target="_blank">GetType</a></td><td><div class="summary">
                     Gets the <a href="http://msdn2.microsoft.com/en-us/library/42892f65" target="_blank">Type</a> of the current instance.
                 </div> (Inherited from <a href="http://msdn2.microsoft.com/en-us/library/e5kfa45b" target="_blank">Object</a>.)</td></tr><tr data="public;inherited;notNetfw;"><td><img src="../icons/pubmethod.gif" alt="Public method" title="Public method" /></td><td><a href="http://msdn2.microsoft.com/en-us/library/7bxwbwt2" target="_blank">ToString</a></td><td><div class="summary">
                     Returns a <a href="http://msdn2.microsoft.com/en-us/library/s1wwdcbf" target="_blank">String</a> that represents the current <a href="http://msdn2.microsoft.com/en-us/library/e5kfa45b" target="_blank">Object</a>.
                 </div> (Inherited from <a href="http://msdn2.microsoft.com/en-us/library/e5kfa45b" target="_blank">Object</a>.)</td></tr></table><a href="#mainBody">Top</a><div class="OH_CollapsibleAreaRegion"><div class="OH_regiontitle">Remarks</div><div class="OH_CollapsibleArea_HrDiv"><hr class="OH_CollapsibleArea_Hr" /></div></div><div class="OH_clear"> </div><p>
             The <span class="code">LogicalThreadContext</span> provides a location for <a href="http://msdn2.microsoft.com/en-us/library/c9tkcy8b" target="_blank">CallContext</a> specific debugging
             information to be stored.
             The <span class="code">LogicalThreadContext</span> properties override any <a href="T_log4net_ThreadContext.htm">ThreadContext</a> or <a href="T_log4net_GlobalContext.htm">GlobalContext</a>
             properties with the same name.
             </p><p>
             For .NET Standard 1.3 this class uses
             System.Threading.AsyncLocal rather than <a href="http://msdn2.microsoft.com/en-us/library/c9tkcy8b" target="_blank">CallContext</a>.
             </p><p>
             The Logical Thread Context has a properties map and a stack.
             The properties and stack can
             be included in the output of log messages. The <a href="T_log4net_Layout_PatternLayout.htm">PatternLayout</a>
             supports selecting and outputting these properties.
             </p><p>
             The Logical Thread Context provides a diagnostic context for the current call context.
             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.
             </p><p>
             The Logical Thread Context is managed on a per <a href="http://msdn2.microsoft.com/en-us/library/c9tkcy8b" target="_blank">CallContext</a> basis.
             </p><p>
             The <a href="http://msdn2.microsoft.com/en-us/library/c9tkcy8b" target="_blank">CallContext</a> requires a link time
             <a href="http://msdn2.microsoft.com/en-us/library/k820e6k8" target="_blank">SecurityPermission</a> for the
             <a href="http://msdn2.microsoft.com/en-us/library/xc5yzfbx" target="_blank">Infrastructure</a>.
             If the calling code does not have this permission then this context will be disabled.
             It will not store any property values set on it.
             </p><div class="OH_CollapsibleAreaRegion"><div class="OH_regiontitle">Examples</div><div class="OH_CollapsibleArea_HrDiv"><hr class="OH_CollapsibleArea_Hr" /></div></div><div class="OH_clear"> </div>Example of using the thread context properties to store a username.
             <div class="OH_CodeSnippetContainer"><div class="OH_CodeSnippetContainerTabs"><div class="OH_CodeSnippetContainerTabLeftActive" id="ID0EAADBA_tabimgleft"> </div><div id="ID0EAADBA_tab1" class="OH_CodeSnippetContainerTabSolo">C#</div><div class="OH_CodeSnippetContainerTabRightActive" id="ID0EAADBA_tabimgright"> </div></div><div class="OH_CodeSnippetContainerCodeCollection"><div class="OH_CodeSnippetToolBar"><div class="OH_CodeSnippetToolBarText"><a id="ID0EAADBA_copyCode" href="#" onclick="javascript:CopyToClipboard('ID0EAADBA');return false;" title="Copy">Copy</a></div></div><div id="ID0EAADBA_code_Div1" class="OH_CodeSnippetContainerCode" style="display: block"><pre xml:space="preserve">LogicalThreadContext.Properties[<span class="highlight-literal">"user"</span>] = userName;
 log.Info(<span class="highlight-literal">"This log message has a LogicalThreadContext Property called 'user'"</span>);</pre></div></div></div><script type="text/javascript">AddLanguageTabSet("ID0EAADBA");</script><div class="OH_CollapsibleAreaRegion"><div class="OH_regiontitle">Examples</div><div class="OH_CollapsibleArea_HrDiv"><hr class="OH_CollapsibleArea_Hr" /></div></div><div class="OH_clear"> </div>Example of how to push a message into the context stack
             <div class="OH_CodeSnippetContainer"><div class="OH_CodeSnippetContainerTabs"><div class="OH_CodeSnippetContainerTabLeftActive" id="ID0EAACBA_tabimgleft"> </div><div id="ID0EAACBA_tab1" class="OH_CodeSnippetContainerTabSolo">C#</div><div class="OH_CodeSnippetContainerTabRightActive" id="ID0EAACBA_tabimgright"> </div></div><div class="OH_CodeSnippetContainerCodeCollection"><div class="OH_CodeSnippetToolBar"><div class="OH_CodeSnippetToolBarText"><a id="ID0EAACBA_copyCode" href="#" onclick="javascript:CopyToClipboard('ID0EAACBA');return false;" title="Copy">Copy</a></div></div><div id="ID0EAACBA_code_Div1" class="OH_CodeSnippetContainerCode" style="display: block"><pre xml:space="preserve"><span class="highlight-keyword">using</span>(LogicalThreadContext.Stacks[<span class="highlight-literal">"LDC"</span>].Push(<span class="highlight-literal">"my context message"</span>))
 {
     log.Info(<span class="highlight-literal">"This log message has a LogicalThreadContext Stack message that includes 'my context message'"</span>);

 } <span class="highlight-comment">// at the end of the using block the message is automatically popped</span></pre></div></div></div><script type="text/javascript">AddLanguageTabSet("ID0EAACBA");</script><div class="OH_CollapsibleAreaRegion"><div class="OH_regiontitle">Thread Safety</div><div class="OH_CollapsibleArea_HrDiv"><hr class="OH_CollapsibleArea_Hr" /></div></div><div class="OH_clear"> </div>Static members of this type are safe for multi-threaded operations. Instance members of this type are safe for multi-threaded operations. <div class="OH_CollapsibleAreaRegion" id="seeAlsoSection"><div class="OH_regiontitle">See Also</div><div class="OH_CollapsibleArea_HrDiv"><hr class="OH_CollapsibleArea_Hr" /></div></div><div class="OH_clear"> </div><h4 class="subHeading">Reference</h4><div class="seeAlsoStyle"><a href="N_log4net.htm">log4net Namespace</a></div></div></div></div></div><div id="OH_footer" class="OH_footer">Apache log4net, Apache and log4net are trademarks of The Apache Software Foundation.<p><a href="http://logging.apache.org/log4net/" target="_blank">Copyright 2004-2017 The Apache Software Foundation</a></p><div class="OH_feedbacklink">Send comments on this topic to
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	<html><head><meta http-equiv="X-UA-Compatible" content="IE=edge" /><link rel="shortcut icon" href="../icons/favicon.ico" /><style type="text/css">.OH_CodeSnippetContainerTabLeftActive, .OH_CodeSnippetContainerTabLeft,.OH_CodeSnippetContainerTabLeftDisabled { }.OH_CodeSnippetContainerTabRightActive, .OH_CodeSnippetContainerTabRight,.OH_CodeSnippetContainerTabRightDisabled { }.OH_footer { }</style><link rel="stylesheet" type="text/css" href="../styles/branding.css" /><link rel="stylesheet" type="text/css" href="../styles/branding-en-US.css" /><script type="text/javascript" src="../scripts/branding.js"> </script><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>LogicalThreadContext Class</title><meta name="Language" content="en-us" /><meta name="System.Keywords" content="LogicalThreadContext class" /><meta name="System.Keywords" content="log4net.LogicalThreadContext class" /><meta name="System.Keywords" content="LogicalThreadContext class, about LogicalThreadContext class" /><meta name="Microsoft.Help.F1" content="log4net.LogicalThreadContext" /><meta name="Microsoft.Help.Id" content="T:log4net.LogicalThreadContext" /><meta name="Description" content="The log4net Logical Thread Context." /><meta name="Microsoft.Help.ContentType" content="Reference" /><meta name="BrandingAware" content="true" /><meta name="container" content="log4net" /><meta name="file" content="T_log4net_LogicalThreadContext" /><meta name="guid" content="T_log4net_LogicalThreadContext" /><link type="text/css" rel="stylesheet" href="../styles/highlight.css" /><script type="text/javascript" src="../scripts/highlight.js"> </script></head><body onload="OnLoad('cs')"><input type="hidden" id="userDataCache" class="userDataStyle" /><div class="OH_outerDiv"><div class="OH_outerContent"><table class="TitleTable"><tr><td class="OH_tdTitleColumn">LogicalThreadContext Class</td><td class="OH_tdRunningTitleColumn">Apache log4net™ SDK Documentation</td></tr></table><div id="mainSection"><div id="mainBody"><span class="introStyle"></span><div class="summary">
	The log4net Logical Thread Context.
	</div><div class="OH_CollapsibleAreaRegion"><div class="OH_regiontitle">Inheritance Hierarchy</div><div class="OH_CollapsibleArea_HrDiv"><hr class="OH_CollapsibleArea_Hr" /></div></div><div class="OH_clear"> </div><a href="http://msdn2.microsoft.com/en-us/library/e5kfa45b" target="_blank">System<span id="LST7E3295ED_0"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST7E3295ED_0?cs=.\|vb=.\|cpp=::\|nu=.\|fs=.");</script>Object</a><br /> <span class="selflink">log4net<span id="LST7E3295ED_1"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST7E3295ED_1?cs=.\|vb=.\|cpp=::\|nu=.\|fs=.");</script>LogicalThreadContext</span><br /><p> </p><strong>Namespace:</strong> <a href="N_log4net.htm">log4net</a><br /><strong>Assembly:</strong> log4net (in log4net.dll) Version: 2.0.8.0-.NET 4.0<div class="OH_CollapsibleAreaRegion"><div class="OH_regiontitle">Syntax</div><div class="OH_CollapsibleArea_HrDiv"><hr class="OH_CollapsibleArea_Hr" /></div></div><div class="OH_clear"> </div><div class="OH_CodeSnippetContainer"><div class="OH_CodeSnippetContainerTabs"><div class="OH_CodeSnippetContainerTabLeft" id="ID0EDCA_tabimgleft"> </div><div id="ID0EDCA_tab1" class="OH_CodeSnippetContainerTabFirst"><a href="#" onclick="javascript:ChangeTab('ID0EDCA','cs','1','4');return false;">C#</a></div><div id="ID0EDCA_tab2" class="OH_CodeSnippetContainerTab"><a href="#" onclick="javascript:ChangeTab('ID0EDCA','vb','2','4');return false;">VB</a></div><div id="ID0EDCA_tab3" class="OH_CodeSnippetContainerTab"><a href="#" onclick="javascript:ChangeTab('ID0EDCA','cpp','3','4');return false;">C++</a></div><div id="ID0EDCA_tab4" class="OH_CodeSnippetContainerTab"><a href="#" onclick="javascript:ChangeTab('ID0EDCA','fs','4','4');return false;">F#</a></div><div class="OH_CodeSnippetContainerTabRight" id="ID0EDCA_tabimgright"> </div></div><div class="OH_CodeSnippetContainerCodeCollection"><div class="OH_CodeSnippetToolBar"><div class="OH_CodeSnippetToolBarText"><a id="ID0EDCA_copyCode" href="#" onclick="javascript:CopyToClipboard('ID0EDCA');return false;" title="Copy">Copy</a></div></div><div id="ID0EDCA_code_Div1" class="OH_CodeSnippetContainerCode" style="display: block"><pre xml:space="preserve"><span class="keyword">public</span> <span class="keyword">sealed</span> <span class="keyword">class</span> <span class="identifier">LogicalThreadContext</span></pre></div><div id="ID0EDCA_code_Div2" class="OH_CodeSnippetContainerCode" style="display: none"><pre xml:space="preserve"><span class="keyword">Public</span> <span class="keyword">NotInheritable</span> <span class="keyword">Class</span> <span class="identifier">LogicalThreadContext</span></pre></div><div id="ID0EDCA_code_Div3" class="OH_CodeSnippetContainerCode" style="display: none"><pre xml:space="preserve"><span class="keyword">public</span> <span class="keyword">ref class</span> <span class="identifier">LogicalThreadContext</span> <span class="keyword">sealed</span></pre></div><div id="ID0EDCA_code_Div4" class="OH_CodeSnippetContainerCode" style="display: none"><pre xml:space="preserve">[<<span class="identifier">SealedAttribute</span>>]
	<span class="keyword">type</span> <span class="identifier">LogicalThreadContext</span> = <span class="keyword">class</span> <span class="keyword">end</span></pre></div></div></div><script type="text/javascript">AddLanguageTabSet("ID0EDCA");</script><p>The <span class="selflink">LogicalThreadContext</span> type exposes the following members.</p><div class="OH_CollapsibleAreaRegion"><div class="OH_regiontitle">Properties</div><div class="OH_CollapsibleArea_HrDiv"><hr class="OH_CollapsibleArea_Hr" /></div></div><div class="OH_clear"> </div><table id="memberList" class="members"><tr><th class="ps_iconColumn">

	</th><th>Name</th><th>Description</th></tr><tr data="public;static;declared;notNetfw;"><td><img src="../icons/pubproperty.gif" alt="Public property" title="Public property" /><img src="../icons/static.gif" alt="Static member" title="Static member" /></td><td><a href="P_log4net_LogicalThreadContext_Properties.htm">Properties</a></td><td><div class="summary">
	The thread properties map
	</div></td></tr><tr data="public;static;declared;notNetfw;"><td><img src="../icons/pubproperty.gif" alt="Public property" title="Public property" /><img src="../icons/static.gif" alt="Static member" title="Static member" /></td><td><a href="P_log4net_LogicalThreadContext_Stacks.htm">Stacks</a></td><td><div class="summary">
	The thread stacks
	</div></td></tr></table><a href="#mainBody">Top</a><div class="OH_CollapsibleAreaRegion"><div class="OH_regiontitle">Methods</div><div class="OH_CollapsibleArea_HrDiv"><hr class="OH_CollapsibleArea_Hr" /></div></div><div class="OH_clear"> </div><table id="memberList" class="members"><tr><th class="ps_iconColumn">

	</th><th>Name</th><th>Description</th></tr><tr data="public;inherited;notNetfw;"><td><img src="../icons/pubmethod.gif" alt="Public method" title="Public method" /></td><td><a href="http://msdn2.microsoft.com/en-us/library/bsc2ak47" target="_blank">Equals</a></td><td><div class="summary">
	Determines whether the specified <a href="http://msdn2.microsoft.com/en-us/library/e5kfa45b" target="_blank">Object</a> is equal to the current <a href="http://msdn2.microsoft.com/en-us/library/e5kfa45b" target="_blank">Object</a>.
	</div> (Inherited from <a href="http://msdn2.microsoft.com/en-us/library/e5kfa45b" target="_blank">Object</a>.)</td></tr><tr data="public;inherited;notNetfw;"><td><img src="../icons/pubmethod.gif" alt="Public method" title="Public method" /></td><td><a href="http://msdn2.microsoft.com/en-us/library/zdee4b3y" target="_blank">GetHashCode</a></td><td><div class="summary">
	Serves as a hash function for a particular type.
	</div> (Inherited from <a href="http://msdn2.microsoft.com/en-us/library/e5kfa45b" target="_blank">Object</a>.)</td></tr><tr data="public;inherited;notNetfw;"><td><img src="../icons/pubmethod.gif" alt="Public method" title="Public method" /></td><td><a href="http://msdn2.microsoft.com/en-us/library/dfwy45w9" target="_blank">GetType</a></td><td><div class="summary">
	Gets the <a href="http://msdn2.microsoft.com/en-us/library/42892f65" target="_blank">Type</a> of the current instance.
	</div> (Inherited from <a href="http://msdn2.microsoft.com/en-us/library/e5kfa45b" target="_blank">Object</a>.)</td></tr><tr data="public;inherited;notNetfw;"><td><img src="../icons/pubmethod.gif" alt="Public method" title="Public method" /></td><td><a href="http://msdn2.microsoft.com/en-us/library/7bxwbwt2" target="_blank">ToString</a></td><td><div class="summary">
	Returns a <a href="http://msdn2.microsoft.com/en-us/library/s1wwdcbf" target="_blank">String</a> that represents the current <a href="http://msdn2.microsoft.com/en-us/library/e5kfa45b" target="_blank">Object</a>.
	</div> (Inherited from <a href="http://msdn2.microsoft.com/en-us/library/e5kfa45b" target="_blank">Object</a>.)</td></tr></table><a href="#mainBody">Top</a><div class="OH_CollapsibleAreaRegion"><div class="OH_regiontitle">Remarks</div><div class="OH_CollapsibleArea_HrDiv"><hr class="OH_CollapsibleArea_Hr" /></div></div><div class="OH_clear"> </div><p>
	The <span class="code">LogicalThreadContext</span> provides a location for <a href="http://msdn2.microsoft.com/en-us/library/c9tkcy8b" target="_blank">CallContext</a> specific debugging
	information to be stored.
	The <span class="code">LogicalThreadContext</span> properties override any <a href="T_log4net_ThreadContext.htm">ThreadContext</a> or <a href="T_log4net_GlobalContext.htm">GlobalContext</a>
	properties with the same name.
	</p><p>
	For .NET Standard 1.3 this class uses
	System.Threading.AsyncLocal rather than <a href="http://msdn2.microsoft.com/en-us/library/c9tkcy8b" target="_blank">CallContext</a>.
	</p><p>
	The Logical Thread Context has a properties map and a stack.
	The properties and stack can
	be included in the output of log messages. The <a href="T_log4net_Layout_PatternLayout.htm">PatternLayout</a>
	supports selecting and outputting these properties.
	</p><p>
	The Logical Thread Context provides a diagnostic context for the current call context.
	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.
	</p><p>
	The Logical Thread Context is managed on a per <a href="http://msdn2.microsoft.com/en-us/library/c9tkcy8b" target="_blank">CallContext</a> basis.
	</p><p>
	The <a href="http://msdn2.microsoft.com/en-us/library/c9tkcy8b" target="_blank">CallContext</a> requires a link time
	<a href="http://msdn2.microsoft.com/en-us/library/k820e6k8" target="_blank">SecurityPermission</a> for the
	<a href="http://msdn2.microsoft.com/en-us/library/xc5yzfbx" target="_blank">Infrastructure</a>.
	If the calling code does not have this permission then this context will be disabled.
	It will not store any property values set on it.
	</p><div class="OH_CollapsibleAreaRegion"><div class="OH_regiontitle">Examples</div><div class="OH_CollapsibleArea_HrDiv"><hr class="OH_CollapsibleArea_Hr" /></div></div><div class="OH_clear"> </div>Example of using the thread context properties to store a username.
	<div class="OH_CodeSnippetContainer"><div class="OH_CodeSnippetContainerTabs"><div class="OH_CodeSnippetContainerTabLeftActive" id="ID0EAADBA_tabimgleft"> </div><div id="ID0EAADBA_tab1" class="OH_CodeSnippetContainerTabSolo">C#</div><div class="OH_CodeSnippetContainerTabRightActive" id="ID0EAADBA_tabimgright"> </div></div><div class="OH_CodeSnippetContainerCodeCollection"><div class="OH_CodeSnippetToolBar"><div class="OH_CodeSnippetToolBarText"><a id="ID0EAADBA_copyCode" href="#" onclick="javascript:CopyToClipboard('ID0EAADBA');return false;" title="Copy">Copy</a></div></div><div id="ID0EAADBA_code_Div1" class="OH_CodeSnippetContainerCode" style="display: block"><pre xml:space="preserve">LogicalThreadContext.Properties[<span class="highlight-literal">"user"</span>] = userName;
	log.Info(<span class="highlight-literal">"This log message has a LogicalThreadContext Property called 'user'"</span>);</pre></div></div></div><script type="text/javascript">AddLanguageTabSet("ID0EAADBA");</script><div class="OH_CollapsibleAreaRegion"><div class="OH_regiontitle">Examples</div><div class="OH_CollapsibleArea_HrDiv"><hr class="OH_CollapsibleArea_Hr" /></div></div><div class="OH_clear"> </div>Example of how to push a message into the context stack
	<div class="OH_CodeSnippetContainer"><div class="OH_CodeSnippetContainerTabs"><div class="OH_CodeSnippetContainerTabLeftActive" id="ID0EAACBA_tabimgleft"> </div><div id="ID0EAACBA_tab1" class="OH_CodeSnippetContainerTabSolo">C#</div><div class="OH_CodeSnippetContainerTabRightActive" id="ID0EAACBA_tabimgright"> </div></div><div class="OH_CodeSnippetContainerCodeCollection"><div class="OH_CodeSnippetToolBar"><div class="OH_CodeSnippetToolBarText"><a id="ID0EAACBA_copyCode" href="#" onclick="javascript:CopyToClipboard('ID0EAACBA');return false;" title="Copy">Copy</a></div></div><div id="ID0EAACBA_code_Div1" class="OH_CodeSnippetContainerCode" style="display: block"><pre xml:space="preserve"><span class="highlight-keyword">using</span>(LogicalThreadContext.Stacks[<span class="highlight-literal">"LDC"</span>].Push(<span class="highlight-literal">"my context message"</span>))
	{
	log.Info(<span class="highlight-literal">"This log message has a LogicalThreadContext Stack message that includes 'my context message'"</span>);

	} <span class="highlight-comment">// at the end of the using block the message is automatically popped</span></pre></div></div></div><script type="text/javascript">AddLanguageTabSet("ID0EAACBA");</script><div class="OH_CollapsibleAreaRegion"><div class="OH_regiontitle">Thread Safety</div><div class="OH_CollapsibleArea_HrDiv"><hr class="OH_CollapsibleArea_Hr" /></div></div><div class="OH_clear"> </div>Static members of this type are safe for multi-threaded operations. Instance members of this type are safe for multi-threaded operations. <div class="OH_CollapsibleAreaRegion" id="seeAlsoSection"><div class="OH_regiontitle">See Also</div><div class="OH_CollapsibleArea_HrDiv"><hr class="OH_CollapsibleArea_Hr" /></div></div><div class="OH_clear"> </div><h4 class="subHeading">Reference</h4><div class="seeAlsoStyle"><a href="N_log4net.htm">log4net Namespace</a></div></div></div></div></div><div id="OH_footer" class="OH_footer">Apache log4net, Apache and log4net are trademarks of The Apache Software Foundation.<p><a href="http://logging.apache.org/log4net/" target="_blank">Copyright 2004-2017 The Apache Software Foundation</a></p><div class="OH_feedbacklink">Send comments on this topic to
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