you can check javadoc, since some methods are inherited

https://www.zkoss.org/javadoc/latest/zk/org/zkoss/zul/Listbox.html

So you can call listbox.setPagingPosition() instead of overriding renderProperties()

you can check javadoc, since Since some methods are inheritedinherited. Please check javadoc, you can find all methods including inherited.

https://www.zkoss.org/javadoc/latest/zk/org/zkoss/zul/Listbox.html

So you can call listbox.setPagingPosition() instead of overriding renderProperties()