'Declaration Public Property AllowDragging As Nullable(Of AllowActivityDragging)
public Nullable<AllowActivityDragging> AllowDragging {get; set;}
The user can drag and drop an activity to change its time or make a copy of the activity, depending upon whether the Ctrl key is held down when the activity is dropped. Holding the Ctrl key down makes the copy of the activity being dragged. Otherwise the activity's time is changed to occupy the target time slot.
Activity can also be dragged to a different calendar of the same resource or a calendar of a different resource. Doing so not only changes time, but also changes the OwningCalendarId and/or OwningResourceId of the activity. Whether the user is allowed to drag accross calendars or resources is controlled by the AllowActivityDragging enum value that's set on the property. However note that the underlying schedule data connector may impose limitations on whether an activity's resource calendar or resource can be changed or not, in which case regardless of what this property is set to, the underlying schedule data connector restriction will be effective.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2