Item level change notifications within Gantt Chart Library and Project Management Library for WPF

In order for the components within Gantt Chart Library for WPF or Project Management Library for WPF to be able to refresh their user interface when object property values change within your data bound custom task or other type of items, you need to make sure that you custom item class implements the INotifyPropertyChanged interface (as other standard controls require).

To get more information about the INotifyPropertyChanged interface and to obtain details regarding how it can be implemented, try searching for it within MSDN.