I have a page that renders a schedule control with time range selection disabled and when the user clicks on a button it calls a piece of javascript to enable the time range selection. The code I use in the javascript is as follows:
ctl00_contentPlaceHolder_roomUtilisation_scheduler.timeRangeSelectedHandling = 'Callback';
I have an alert after this that confirms the setting of this property.
If I try to select a date range nothing happens and it behaves as if it is disabled.