Gets or sets a value that indicates whether target GanttChartItem and PredecessorItem objects generated by the converter are automatically updated when internally bound data source values change. Set this property to true only when the feature is needed, i.e. when code behind changes the data source while the user interface presents it and all changes should be automatically reflected on screen (by default it is set to false in order to provide increased performance). Note that automatic updates work only when the custom data source implements INotifyCollectionChanged interface and/or custom data objects implement INotifyPropertyChanged interface. This property can be set only at initialization time (an exception is thrown if it is set after having the conversion process started).

public bool UpdateTargetOnSourceChanges { get; set; }

Public Property UpdateTargetOnSourceChanges As Boolean