Hello Matthijs,

I have been looking into your questions and I can suggest you the following:

If you want to disable the appointment dialog you can  handle the ActivityDialogDisplaying event of the XamScheduleDataManager as follows:

        private void dataManager_ActivityDialogDisplaying(object sender, ActivityDialogDisplayingEventArgs e)

        {

            e.Cancel = true;

        }

Furthermore you can add almost any handler that you want in our XamSchedule. For example you can create a new style for the CalendarHeaderVertical and set an EvenSettter for its Click event, so it will fire every time the user click over it.

If you have any additional questions with this matter please feel free to ask.

Hello Matthijs,

I was just wondering did you have a chance to try my suggestion. If you still need any assistance on the matter, please do not hesitate to ask.