An appointment's label.
public class AppointmentLabelItem : SourceObjectContainer
Labels specify in which color the Scheduler paints its appointments. The Scheduler stores labels that it can use in the LabelItems collection.
The LabelItems collection is always synchronous with the scheduler's DataSource when the source is specified.
You can use the DataSource.CreateSourceObject event to create a source object that is assigned to a new item, if the source objects' type does not provide a parameterless constructor.
Note that the scheduler fills its label collection with default labels if you do not populate the collection manually or generate labels from a data source. The list of default labels is the following:
Label Id (Int32 Value)