<?xml version="1.0" encoding="UTF-8"?><!--B30-1883262.zul{{IS_NOTE	Purpose:			Description:			History:		Thu Jan 31 14:50:34 TST 2008, Created by jumperchen}}IS_NOTECopyright (C) 2007 Potix Corporation. All Rights Reserved.{{IS_RIGHT}}IS_RIGHT--><zk xmlns:n="http://www.zkoss.org/2005/zk/native"><n:p>1.Please focus in and out the input element, you should not see any error dialog.</n:p><n:p>2.The textbox shall disappear.</n:p>	<window id="win">	 	<zscript><![CDATA[Constraint ctt = new Constraint() {	public void validate(Component comp, Object value) throws WrongValueException { 		try {			throw new WrongValueException( comp, "Error" );		}finally{			Events.postEvent(new Event("onChange", comp, null));		}	} } 	]]></zscript>	<textbox id="txtbox" constraint="${ctt}" onChange="self.clearErrorMessage();win.detach();"/>	</window></zk>