Microsoft Technology Guru Contest Round 2 – Question # 27

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INotifyPropertyChanged event provides a PropertyChanged Event Handler which is raised when value of the property changes. This works in which of the following cases

1. When binding is set to OneTime
2. When binding is set to OneWay
3. When binding is set to TwoWay
4. All of the above
5. Both 2 and 3

 

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