Associating a Standard List Controller with a Visualforce Page
Using a standard list controller is very similar to using a standard controller. First you set the standardController attribute on the <apex:page> component, then you set the recordSetVar attribute on the same component.
For example, to associate a page with the standard list controller for accounts, use the
following
markup:
<apex:page standardController="Account" recordSetVar="accounts">
The recordSetVar attribute not only indicates that the page uses a list controller, it sets the variable name of the record collection. This variable can be used to access data in the record collection.