Occurs when a sort operation is requested, but before the ListView control handles the sort operation.
Assembly: System.Web.Extensions (in System.Web.Extensions.dll)
The event is raised when a Sort button is clicked or the Sort method is called, but before the ListView control handles the sort operation. (A Sort button is a button control whose CommandName property is set to "Sort".) This enables you to perform a custom routine whenever this event occurs, such as customizing the sort expression.
A ListViewSortEventArgs object is passed to the event handler, which enables you to determine the sort expression for the column. It also lets you indicate that the sort operation should be canceled. To cancel the sort operation, set the Cancel property of the ListViewSortEventArgs object to true.
For more information about how to handle events, see Consuming Events.