﻿<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>TextWriterAppender.ImmediateFlush Property </title><meta name="Language" content="en-us" /><meta name="System.Keywords" content="ImmediateFlush property" /><meta name="System.Keywords" content="TextWriterAppender.ImmediateFlush property" /><meta name="Microsoft.Help.F1" content="log4net.Appender.TextWriterAppender.ImmediateFlush" /><meta name="Microsoft.Help.F1" content="log4net.Appender.TextWriterAppender.get_ImmediateFlush" /><meta name="Microsoft.Help.F1" content="log4net.Appender.TextWriterAppender.set_ImmediateFlush" /><meta name="Microsoft.Help.Id" content="P:log4net.Appender.TextWriterAppender.ImmediateFlush" /><meta name="Description" content="Gets or set whether the appender will flush at the end of each append operation." /><meta name="Microsoft.Help.ContentType" content="Reference" /><meta name="BrandingAware" content="true" /><meta name="container" content="log4net.Appender" /><meta name="file" content="P_log4net_Appender_TextWriterAppender_ImmediateFlush" /><meta name="guid" content="P_log4net_Appender_TextWriterAppender_ImmediateFlush" /></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">TextWriterAppender<span id="LST89723FB2_0"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST89723FB2_0?cpp=::|nu=.");</script>ImmediateFlush Property </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">
            Gets or set whether the appender will flush at the end 
            of each append operation.
            </div><p> </p><strong>Namespace:</strong> <a href="N_log4net_Appender.htm">log4net.Appender</a><br /><strong>Assembly:</strong> log4net (in log4net.dll) Version: 2.0.6.0-.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="identifier">bool</span> <span class="identifier">ImmediateFlush</span> { <span class="keyword">get</span>; <span class="keyword">set</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">Property</span> <span class="identifier">ImmediateFlush</span> <span class="keyword">As</span> <span class="identifier">Boolean</span>
	<span class="keyword">Get</span>
	<span class="keyword">Set</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">property</span> <span class="identifier">bool</span> <span class="identifier">ImmediateFlush</span> {
	<span class="identifier">bool</span> <span class="keyword">get</span> ();
	<span class="keyword">void</span> <span class="keyword">set</span> (<span class="identifier">bool</span> <span class="parameter">value</span>);
}</pre></div><div id="ID0EDCA_code_Div4" class="OH_CodeSnippetContainerCode" style="display: none"><pre xml:space="preserve"><span class="keyword">member</span> <span class="identifier">ImmediateFlush</span> : <span class="identifier">bool</span> <span class="keyword">with</span> <span class="keyword">get</span>, <span class="keyword">set</span>
</pre></div></div></div><script type="text/javascript">AddLanguageTabSet("ID0EDCA");</script><h4 class="subHeading">Property Value</h4>Type: <a href="http://msdn2.microsoft.com/en-us/library/a28wyd50" target="_blank">Boolean</a><br /><p>
            The default behavior is to flush at the end of each 
            append operation.
            </p><p>
            If this option is set to <span class="code">false</span>, then the underlying 
            stream can defer persisting the logging event to a later 
            time.
            </p><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>
            Avoiding the flush operation at the end of each append results in
            a performance gain of 10 to 20 percent. However, there is safety
            trade-off involved in skipping flushing. Indeed, when flushing is
            skipped, then it is likely that the last few log events will not
            be recorded on disk when the application exits. This is a high
            price to pay even for a 20% performance gain.
            <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="T_log4net_Appender_TextWriterAppender.htm">TextWriterAppender Class</a></div><div class="seeAlsoStyle"><a href="N_log4net_Appender.htm">log4net.Appender 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 2004-2016 The Apache Software Foundation</a></p><div class="OH_feedbacklink">Send comments on this topic to
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