newIndex Property

When the action that this event is being raised for is Move, this method will return the new index the column is going to be moved to. If the action is Move then an integer will be returned otherwise null.

Syntax

ASP.NET Ajax Javascript (Specification)
function get_newIndex() : Number

ASP.NET Ajax Javascript (Usage)
var resultVar = instanceOfCancelGroupedColumnsEventArgs.get_newIndex();