The IPageableItemContainer interface defines properties, methods, and events that must be implemented by data-bound controls in order to have paging functionality provided by the DataPager control. (An example of a control that implements this interface is the ListView control.)
The TotalRowCountAvailable event is raised when the DataPager control can bind to data. The DataPager control provides a handler for this event that is named OnTotalRowCountAvailable.
The SetPageProperties method is called by the DataPager control every time that the control must update the page-related properties. For example, this method is called when the user navigates to another page of data.