The event handler receives an argument of type System.EventArgs containing data related to this event.
Important
You are viewing documentation for the legacy WPF Scheduler control. If you're starting a new project, we strongly recommend that you use a new control declared in the DevExpress.Xpf.Scheduling namespace. If you decide to upgrade an existing project in order to switch to the updated scheduler control, see the Migration Guidelines document.
The VisibleIntervalChanged event is generated each time the time interval represented by the scheduling area has been changed.
For instance, the displayed time interval can be changed by assigning a new value to the Start property, by changing the Scheduler control's active view (the ActiveViewType property), etc.