juniorWPF
What is INotifyPropertyChanged?
Updated May 6, 2026
Short answer
It is an interface used to notify UI when property values change.
Deep explanation
It enables automatic UI updates in MVVM by raising PropertyChanged events.
Real-world example
Updating UI when user name changes.
Common mistakes
- Forgetting to raise PropertyChanged event.
Follow-up questions
- What happens if it's not implemented?