﻿<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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		</style><script src="./../scripts/branding.js" type="text/javascript"><!----></script><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>ILogExtensions.WarnFormatExt Method </title><meta name="Language" content="en-us" /><meta name="System.Keywords" content="WarnFormatExt method" /><meta name="System.Keywords" content="ILogExtensions.WarnFormatExt method" /><meta name="Microsoft.Help.F1" content="log4net.Util.ILogExtensions.WarnFormatExt" /><meta name="Microsoft.Help.Id" content="Overload:log4net.Util.ILogExtensions.WarnFormatExt" /><meta name="Microsoft.Help.ContentType" content="Reference" /><meta name="BrandingAware" content="'true'" /><meta name="container" content="log4net.Util" /><meta name="file" content="Overload_log4net_Util_ILogExtensions_WarnFormatExt" /><meta name="guid" content="Overload_log4net_Util_ILogExtensions_WarnFormatExt" /><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">ILogExtensions<span id="ID0EBBABAAA"> </span><script type="text/javascript">
					addToLanSpecTextIdSet("ID0EBBABAAA?vb=.|cpp=::|cs=.|fs=.|nu=.");
				</script>WarnFormatExt Method </td><td class="OH_tdRunningTitleColumn">Apache log4net™ SDK Documentation</td></tr></table><div id="mainSection"><div id="mainBody"><span class="introStyle"></span><div class="OH_CollapsibleAreaRegion"><div class="OH_regiontitle">Overload List</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 class="ps_nameColumn">Name</th><th class="ps_descriptionColumn">Description</th></tr><tr data="public;static;declared;notNetfw;"><td><img src="./../icons/pubmethod.gif" alt="Public method" title="Public method" /><img src="./../icons/static.gif" alt="Static member" title="Static member" /></td><td><a href="M_log4net_Util_ILogExtensions_WarnFormatExt_1.htm" target="">WarnFormatExt(ILog, String, Object)</a></td><td><div class="summary">
            Logs a formatted message string with the <a href="F_log4net_Core_Level_Warn.htm" target="">Warn</a> level.
            </div></td></tr><tr data="public;static;declared;notNetfw;"><td><img src="./../icons/pubmethod.gif" alt="Public method" title="Public method" /><img src="./../icons/static.gif" alt="Static member" title="Static member" /></td><td><a href="M_log4net_Util_ILogExtensions_WarnFormatExt_4.htm" target="">WarnFormatExt(ILog, String, <span id="ID0EDABDBCAAAAA"> </span><script type="text/javascript">
					addToLanSpecTextIdSet("ID0EDABDBCAAAAA?vb=|cpp=array&lt;|cs=|fs=|nu=");
				</script>Object<span id="ID0EBABDBCAAAAA"> </span><script type="text/javascript">
					addToLanSpecTextIdSet("ID0EBABDBCAAAAA?vb=()|cpp=&gt;|cs=[]|fs=[]|nu=[]");
				</script>)</a></td><td><div class="summary">
            Logs a formatted message string with the <a href="F_log4net_Core_Level_Warn.htm" target="">Warn</a> level.
            </div></td></tr><tr data="public;static;declared;notNetfw;"><td><img src="./../icons/pubmethod.gif" alt="Public method" title="Public method" /><img src="./../icons/static.gif" alt="Static member" title="Static member" /></td><td><a href="M_log4net_Util_ILogExtensions_WarnFormatExt.htm" target="">WarnFormatExt(ILog, IFormatProvider, String, <span id="ID0EDABCBCAAAAA"> </span><script type="text/javascript">
					addToLanSpecTextIdSet("ID0EDABCBCAAAAA?vb=|cpp=array&lt;|cs=|fs=|nu=");
				</script>Object<span id="ID0EBABCBCAAAAA"> </span><script type="text/javascript">
					addToLanSpecTextIdSet("ID0EBABCBCAAAAA?vb=()|cpp=&gt;|cs=[]|fs=[]|nu=[]");
				</script>)</a></td><td><div class="summary">
            Logs a formatted message string with the <a href="F_log4net_Core_Level_Warn.htm" target="">Warn</a> level.
            </div></td></tr><tr data="public;static;declared;notNetfw;"><td><img src="./../icons/pubmethod.gif" alt="Public method" title="Public method" /><img src="./../icons/static.gif" alt="Static member" title="Static member" /></td><td><a href="M_log4net_Util_ILogExtensions_WarnFormatExt_2.htm" target="">WarnFormatExt(ILog, String, Object, Object)</a></td><td><div class="summary">
            Logs a formatted message string with the <a href="F_log4net_Core_Level_Warn.htm" target="">Warn</a> level.
            </div></td></tr><tr data="public;static;declared;notNetfw;"><td><img src="./../icons/pubmethod.gif" alt="Public method" title="Public method" /><img src="./../icons/static.gif" alt="Static member" title="Static member" /></td><td><a href="M_log4net_Util_ILogExtensions_WarnFormatExt_3.htm" target="">WarnFormatExt(ILog, String, Object, Object, Object)</a></td><td><div class="summary">
            Logs a formatted message string with the <a href="F_log4net_Core_Level_Warn.htm" target="">Warn</a> level.
            </div></td></tr></table><a href="#mainBody" target="">Back to Top</a><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="T_log4net_Util_ILogExtensions.htm" target="">ILogExtensions Class</a></div><div class="seeAlsoStyle"><a href="AllMembers_T_log4net_Util_ILogExtensions.htm" target="">ILogExtensions Members</a></div><div class="seeAlsoStyle"><a href="N_log4net_Util.htm" target="">log4net.Util 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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