ZK Configuration Reference/zk.xml/The Library Properties/org.zkoss.zul.listbox.rod

Property:

org.zkoss.zul.listbox.rod

Applicable:
 globally in zk.xml via <library-property>
 nested in a zul file via <custom-attributes>

Set render-on-demand for listbox components. Using render on demand, the listboxcomponents will automatically add and remove rows depending on client scrolling. On large models, this will avoid sending the full content during page rendering.

See performance documentation for additional information.

Default: false

<listbox>
  <custom-attributes org.zkoss.zul.listbox.rod="true"/>
...

<library-property>
    <name>org.zkoss.zul.listbox.rod</name>
    <value>true</value>
</library-property>
...