Fires on the server side after a page size (amount of items per page) is changed by end-user interactions.
The PageSizeChanged event's data class is EventArgs.
The PageSizeChanged event allows you to perform any custom actions after the page size is changed by end-user interactions. Before the page size is changed, the ASPxDataViewBase.PageSizeChanging event is raised, allowing you to cancel the action.
When a control displays all items, the properties specifying the page size returns the last specified numerical values.