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| </style><script src="./../scripts/branding.js" type="text/javascript"><!----></script><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>DynamicPatternLayout Class</title><meta name="Language" content="en-us" /><meta name="System.Keywords" content="DynamicPatternLayout class" /><meta name="System.Keywords" content="log4net.Layout.DynamicPatternLayout class" /><meta name="System.Keywords" content="DynamicPatternLayout class, about DynamicPatternLayout class" /><meta name="Microsoft.Help.F1" content="log4net.Layout.DynamicPatternLayout" /><meta name="Microsoft.Help.Id" content="T:log4net.Layout.DynamicPatternLayout" /><meta name="Description" content="A flexible layout configurable with pattern string that re-evaluates on each call." /><meta name="Microsoft.Help.ContentType" content="Reference" /><meta name="BrandingAware" content="'true'" /><meta name="container" content="log4net.Layout" /><meta name="file" content="T_log4net_Layout_DynamicPatternLayout" /><meta name="guid" content="T_log4net_Layout_DynamicPatternLayout" /><link type="text/css" rel="stylesheet" href="ms-help://Hx/HxRuntime/HxLink.css" /><meta name="SelfBranded" content="true" /></head><body onload="onLoad()" class="primary-mtps-offline-document"><div class="OH_outerDiv"><div class="OH_outerContent"><table class="TitleTable"><tr><td class="OH_tdTitleColumn">DynamicPatternLayout 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"> | |
| A flexible layout configurable with pattern string that re-evaluates on each call. | |
| </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><img src="./../icons/online_icon.gif" class="OH_offlineIcon" alt="Online" title="Online" /><a href="http://msdn2.microsoft.com/en-us/library/e5kfa45b" target="_blank">System<span id="ID0EBKNAAAAA"> </span><script type="text/javascript"> | |
| addToLanSpecTextIdSet("ID0EBKNAAAAA?vb=.|cpp=::|cs=.|fs=.|nu=."); | |
| </script>Object</a><br /> <a href="T_log4net_Layout_LayoutSkeleton.htm" target="">log4net.Layout<span id="ID0EBHNAAAAA"> </span><script type="text/javascript"> | |
| addToLanSpecTextIdSet("ID0EBHNAAAAA?vb=.|cpp=::|cs=.|fs=.|nu=."); | |
| </script>LayoutSkeleton</a><br /> <a href="T_log4net_Layout_PatternLayout.htm" target="">log4net.Layout<span id="ID0EBENAAAAA"> </span><script type="text/javascript"> | |
| addToLanSpecTextIdSet("ID0EBENAAAAA?vb=.|cpp=::|cs=.|fs=.|nu=."); | |
| </script>PatternLayout</a><br /> <span class="selflink">log4net.Layout<span id="ID0EBBNAAAAA"> </span><script type="text/javascript"> | |
| addToLanSpecTextIdSet("ID0EBBNAAAAA?vb=.|cpp=::|cs=.|fs=.|nu=."); | |
| </script>DynamicPatternLayout</span><br /><p></p><b>Namespace:</b> <a href="N_log4net_Layout.htm" target="">log4net.Layout</a><br /><b>Assembly:</b> <span sdata="assembly">log4net</span> (in log4net.dll) Version: 1.2.14.0 (1.2.14.0)<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 id="snippetGroup_Syntax" class="code"><div id="ID0ECADAAAAA" class="OH_CodeSnippetContainer"><div class="OH_CodeSnippetContainerTabs" id="ID0ECADAAAAA_tabs"><div class="OH_CodeSnippetContainerTabLeftActive" id="ID0ECADAAAAA_tabimgleft"></div><div id="ID0ECADAAAAA_tab1" class="OH_CodeSnippetContainerTabActive" EnableCopyCode="true"><a href="#" onclick="javascript:ChangeTab('ID0ECADAAAAA','C#','1','4');return false;">C#</a></div><div id="ID0ECADAAAAA_tab2" class="OH_CodeSnippetContainerTab" EnableCopyCode="true"><a href="#" onclick="javascript:ChangeTab('ID0ECADAAAAA','Visual Basic','2','4');return false;">VB</a></div><div id="ID0ECADAAAAA_tab3" class="OH_CodeSnippetContainerTab" EnableCopyCode="true"><a href="#" onclick="javascript:ChangeTab('ID0ECADAAAAA','Visual C++','3','4');return false;">C++</a></div><div id="ID0ECADAAAAA_tab4" class="OH_CodeSnippetContainerTabDisabledNotFirst" EnableCopyCode="true" disabled="true"><a>F#</a></div><div class="OH_CodeSnippetContainerTabRight" id="ID0ECADAAAAA_tabimgright"></div></div><div id="ID0ECADAAAAA_codecollection" class="OH_CodeSnippetContainerCodeCollection"><div class="OH_CodeSnippetToolBar"><div class="OH_CodeSnippetToolBarText"><a id="ID0ECADAAAAA_ViewColorized" href="#" onclick="javascript:ExchangeTitleContent('ID0ECADAAAAA','4')" title="View Colorized" style="display: none">View Colorized</a><a id="ID0ECADAAAAA_copycode" href="#" onclick="javascript:CopyToClipboard('ID0ECADAAAAA','4')" title="Copy to Clipboard">Copy to Clipboard</a><a id="ID0ECADAAAAA_PrintText" class="OH_PrintText" href="#" onclick="javascript:Print('ID0ECADAAAAA','4')" title="Print">Print</a></div></div><div id="ID0ECADAAAAA_code_Div1" class="OH_CodeSnippetContainerCode" style="display: block"><pre><span class="keyword">public</span> <span class="keyword">class</span> <span class="identifier">DynamicPatternLayout</span> : <span class="identifier">PatternLayout</span></pre></div><div id="ID0ECADAAAAA_code_Plain_Div1" class="OH_CodeSnippetContainerCode" style="display: none"><pre>public class DynamicPatternLayout : PatternLayout</pre></div><div id="ID0ECADAAAAA_code_Div2" class="OH_CodeSnippetContainerCode" style="display: none"><pre><span class="keyword">Public</span> <span class="keyword">Class</span> <span class="identifier">DynamicPatternLayout</span> | |
| <span class="keyword">Inherits</span> <span class="identifier">PatternLayout</span></pre></div><div id="ID0ECADAAAAA_code_Plain_Div2" class="OH_CodeSnippetContainerCode" style="display: none"><pre>Public Class DynamicPatternLayout | |
| Inherits PatternLayout</pre></div><div id="ID0ECADAAAAA_code_Div3" class="OH_CodeSnippetContainerCode" style="display: none"><pre><span class="keyword">public</span> <span class="keyword">ref class</span> <span class="identifier">DynamicPatternLayout</span> : <span class="keyword">public</span> <span class="identifier">PatternLayout</span></pre></div><div id="ID0ECADAAAAA_code_Plain_Div3" class="OH_CodeSnippetContainerCode" style="display: none"><pre>public ref class DynamicPatternLayout : public PatternLayout</pre></div><div id="ID0ECADAAAAA_code_Div4" class="OH_CodeSnippetContainerCode" style="display: none"><pre /></div><div id="ID0ECADAAAAA_code_Plain_Div4" class="OH_CodeSnippetContainerCode" style="display: none"><pre /></div></div></div><script>addSpecificTextLanguageTagSet('ID0ECADAAAAA');</script></div><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>This class is built on <a href="T_log4net_Layout_PatternLayout.htm" target="">PatternLayout</a> and provides all the | |
| features and capabilities of PatternLayout. PatternLayout is a 'static' class | |
| in that its layout is done once at configuration time. This class will recreate | |
| the layout on each reference.</p><p>One important difference between PatternLayout and DynamicPatternLayout is the | |
| treatment of the Header and Footer parameters in the configuration. The Header and Footer | |
| parameters for DynamicPatternLayout must be syntactically in the form of a PatternString, | |
| but should not be marked as type log4net.Util.PatternString. Doing so causes the | |
| pattern to be statically converted at configuration time and causes DynamicPatternLayout | |
| to perform the same as PatternLayout.</p><p>Please see <a href="T_log4net_Layout_PatternLayout.htm" target="">PatternLayout</a> for complete documentation.</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> | |
| <layout type="log4net.Layout.DynamicPatternLayout"> | |
| <param name="Header" value="%newline**** Trace Opened Local: %date{yyyy-MM-dd HH:mm:ss.fff} UTC: %utcdate{yyyy-MM-dd HH:mm:ss.fff} ****%newline" /> | |
| <param name="Footer" value="**** Trace Closed %date{yyyy-MM-dd HH:mm:ss.fff} ****%newline" /> | |
| </layout> | |
| <a name="seeAlsoSection"><!----></a><div class="OH_CollapsibleAreaRegion"><div class="OH_regiontitle">See Also</div><div class="OH_CollapsibleArea_HrDiv"><hr class="OH_CollapsibleArea_Hr" /></div></div><div class="OH_clear"></div><div class="seeAlsoStyle"><a href="AllMembers_T_log4net_Layout_DynamicPatternLayout.htm" target="">DynamicPatternLayout Members</a></div><div class="seeAlsoStyle"><a href="N_log4net_Layout.htm" target="">log4net.Layout Namespace</a></div></div></div></div></div><div id="OH_footer" class="OH_footer"><p>Apache log4net, Apache and log4net are trademarks of The Apache Software Foundation.</p><p><a href="http://logging.apache.org/log4net/" target="_blank"><img src="./../icons/online_icon.gif" class="OH_offlineIcon" alt="Online" title="Online" /> | |
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