﻿<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>Logger.Additivity Property </title><meta name="Language" content="en-us" /><meta name="System.Keywords" content="Additivity property" /><meta name="System.Keywords" content="Logger.Additivity property" /><meta name="Microsoft.Help.F1" content="log4net.Repository.Hierarchy.Logger.Additivity" /><meta name="Microsoft.Help.F1" content="log4net.Repository.Hierarchy.Logger.get_Additivity" /><meta name="Microsoft.Help.F1" content="log4net.Repository.Hierarchy.Logger.set_Additivity" /><meta name="Microsoft.Help.Id" content="P:log4net.Repository.Hierarchy.Logger.Additivity" /><meta name="Description" content="Gets or sets a value indicating if child loggers inherit their parent's appenders." /><meta name="Microsoft.Help.ContentType" content="Reference" /><meta name="BrandingAware" content="true" /><meta name="container" content="log4net.Repository.Hierarchy" /><meta name="file" content="P_log4net_Repository_Hierarchy_Logger_Additivity" /><meta name="guid" content="P_log4net_Repository_Hierarchy_Logger_Additivity" /></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">Logger<span id="LST49E19653_0"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST49E19653_0?cpp=::|nu=.");</script>Additivity 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 sets a value indicating if child loggers inherit their parent's appenders.
            </div><p> </p><strong>Namespace:</strong> <a href="N_log4net_Repository_Hierarchy.htm">log4net.Repository.Hierarchy</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="keyword">virtual</span> <span class="identifier">bool</span> <span class="identifier">Additivity</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">Overridable</span> <span class="keyword">Property</span> <span class="identifier">Additivity</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">virtual</span> <span class="keyword">property</span> <span class="identifier">bool</span> <span class="identifier">Additivity</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">abstract</span> <span class="identifier">Additivity</span> : <span class="identifier">bool</span> <span class="keyword">with</span> <span class="keyword">get</span>, <span class="keyword">set</span>
<span class="keyword">override</span> <span class="identifier">Additivity</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 /><span class="code">true</span> if child loggers inherit their parent's appenders.
            <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>
            Additivity is set to <span class="code">true</span> by default, that is children inherit
            the appenders of their ancestors by default. If this variable is
            set to <span class="code">false</span> then the appenders found in the
            ancestors of this logger are not used. However, the children
            of this logger will inherit its appenders, unless the children
            have their additivity flag set to <span class="code">false</span> too. See
            the user manual for more details.
            </p><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_Repository_Hierarchy_Logger.htm">Logger Class</a></div><div class="seeAlsoStyle"><a href="N_log4net_Repository_Hierarchy.htm">log4net.Repository.Hierarchy 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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