See Also: INotifyPropertyChanged Members
The System.ComponentModel.INotifyPropertyChanged interface is used to notify clients, typically binding clients, that a property value has changed.
For example, consider a Person object with a property called FirstName. To provide generic property-change notification, the Person type implements the System.ComponentModel.INotifyPropertyChanged interface and raises a INotifyPropertyChanged.PropertyChanged event when FirstName is changed.
For change notification to occur in a binding between a bound client and a data source, your bound type should either:
Implement the System.ComponentModel.INotifyPropertyChanged interface (preferred).
Provide a change event for each property of the bound type.
Do not do both.