By default, the AllowResizeEvent property is exLeftClick, which indicates that the user can press the left mouse button on the event's lower or upper margin, to start resizing one or more events ( selection). The AllowResizeEvent property on exDisallow indicates that user can not resize the events. The AllowResizeEvent property indicates the combination of the keys to let user resizes the events. The Resizable property of the Event indicates whether an event can be resized at runtime. The MinDate/MaxDate properties of the Event indicates the lower or upper margins where the event can be resized. The UpdateEvent event occurs once an event is resized or moved. The AllowRefineMoveKey property specifies whether the margins of the events being updated are aligned to minor/major rulers of the control's time scale.

The UpdateEventsLabel property indicates the HTML format to be shown on the label when the user resizes the events. The UpdateEventsLabelAlign property aligns the label being shown when the user resizes the event. The Background(exScheduleUpdateEventsBackColor)  and Background(exScheduleUpdateEventsForeColor)  specifies the visual appearance of the event being moved. The AllowCreateEvent property indicates the combination of the keys to let user creates new events. The AllowMoveEvent property indicates the combination of the keys to let user moves the events.