You can use the viewChange event of the scheduler. This event is triggered when the view type is changed. This event has five arguments: date, from and to – jqxDate objects, oldViewType and newViewType – strings.
var args = event.args;
var date = args.date;
var from = args.from;
var to = args.to;
var oldViewType = args.oldViewType;
var newViewType = args.newViewType });