﻿<html xmlns:MSHelp="http://msdn.microsoft.com/mshelp" xmlns:mshelp="http://msdn.microsoft.com/mshelp"><head><link rel="SHORTCUT ICON" href="./../icons/favicon.ico" /><style type="text/css">.OH_CodeSnippetContainerTabLeftActive, .OH_CodeSnippetContainerTabLeft,.OH_CodeSnippetContainerTabLeftDisabled { backgroundImageName: tabLeftBG.gif; }.OH_CodeSnippetContainerTabRightActive, .OH_CodeSnippetContainerTabRight,.OH_CodeSnippetContainerTabRightDisabled { backgroundImageName: tabRightBG.gif; }.OH_footer { backgroundImageName: footer_slice.gif; background-position: top; background-repeat: repeat-x; }</style><link rel="stylesheet" type="text/css" href="./../styles/branding.css" /><link rel="stylesheet" type="text/css" href="./../styles/branding-en-US.css" /><style type="text/css">
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            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">
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					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>
            &lt;layout type="log4net.Layout.DynamicPatternLayout"&gt;
              &lt;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" /&gt;
              &lt;param name="Footer" value="**** Trace Closed %date{yyyy-MM-dd HH:mm:ss.fff} ****%newline" /&gt;
            &lt;/layout&gt;
            <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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