WPF INotifyPropertyChanged: Purpose & How It Works

The INotifyPropertyChanged interface in WPF is used to implement data binding and notify changes to the properties of interface elements. When a class implementing the INotifyPropertyChanged interface has a property that changes, it triggers the PropertyChanged event, allowing UI elements bound to that property to update their display content. By implementing the INotifyPropertyChanged interface, developers can achieve two-way binding between data and interface elements, enabling the interface to dynamically reflect changes in the data.