Occurs when the value of the FormView.PageIndex property changes after a paging operation.
The System.Web.UI.WebControls.FormView control raises the FormView.PageIndexChanged event when a pager button (a button with its CommandName property set to "Page") within the control is clicked, but after the System.Web.UI.WebControls.FormView control handles the paging operation. This allows you to provide an event-handling method that performs a custom routine whenever this event occurs.
This event is not raised when you programmatically set the FormView.PageIndex property.
Pager buttons are usually located in the pager row of a System.Web.UI.WebControls.FormView control. This event is often used to synchronize a System.Web.UI.WebControls.FormView control with a System.Web.UI.WebControls.GridView control or to set the behavior of the System.Web.UI.WebControls.FormView control after a paging operation.
For more information about handling events, see Consuming Events.