Standard Namespaces

Standard namespaces are not languages. That means they are not used to provide component definitions. Rather, they are used to provide special functionality to ZUML.

For introduction of languages vs standard namespaces, please refer to ZK Developer's References.

Namespace	Description
zk	Name: zk Namespace: http://www.zkoss.org/2005/zk Namespace shortcut: zk It is the reserved namespace for specifying ZK specific elements and attributes, such as the zk element and the unless attribute. For more information please refer to the ZK Namespace section.
native	Name: native Namespace: http://www.zkoss.org/2005/zk/native Namespace shortcut: native It is the reserved namespace for specifying native elements. A native element represents a native tag at the client. For browsers, a native element represents a HTML tag. Unlike the xhtml language, there is no component associated with, so the performance is much better but you cannot change it dynamically. For more information please refer to the Native Namespace section.
client	Name: client Namespace: http://www.zkoss.org/2005/zk/client Namespace shortcut: client It is the reserved namespace for specifying client-side event listener and overrides. For more information please refer to the Client Namespace section.
client attribute	Name: client attribute Namespace: http://www.zkoss.org/2005/zk/client/attribute Namespace shortcut: client/attribute It is the reserved namespace for specifying client-side DOM attributes. Unlike the client namespace, which assigns something to widgets, the client/attribute namespace assigns to the DOM tree directly. For more information please refer to the Client Attribute Namespace section.