From Documentation
Name: zk
Namespace: http://www.zkoss.org/2005/zk
Namespace shortcut: zk
Java: LanguageDefinition.ZK_NAMESPACE

It is the standard namespace for specifying ZK specific elements and attributes, such as the zk element and unless attribute.

By default, ZK Loader will detect if a XML element or attribute is a special element or attribute, and then handle it differently. However, if the default XML namespace is the native namespace or a component set that accepts any element name, such as the XHTML langauge, you have to specify the zk namespace. Otherwise, they will be interpreted as a component. For example,

<html xmlns="native" xmlns:u="zul" xmlns:zk="zk">
		<title>ZHTML Demo</title>
		<script type="text/javascript">
		function woo() { //running at the browser
		void addItem() { //running at the server
		<u:window title="HTML App">
			<input type="button" value="Add Item"
			onClick="woo()" zk:onClick="addItem()"/>

Version History

Last Update : 2022/01/17

Version Date Content

Last Update : 2022/01/17

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