How can i use dataSource control, let it binding to page method but not web service

such as

<dataSource id="listDataSource" autoLoad="true" serviceURL="MyService.asmx" />

it binding to a web service named MyService.asmx,How can i binding it to a page method?

thanks

A data source can only declaratively bind to a DataService.

To bind it to other data, you can obtain the data programmatically (e.g. from a page method), and set the data property of the data source to the returned data.

Alternatively, you could directly bind the content (e.g. the ListView control) directly to the data, without using the data source control.

Thanks,