Windows® Phone 8 Unleashed

Implementing INotifyPropertyChanged: The Traditional Approach

The INotifyPropertyChanged interface has a single event called PropertyChanged. The implementation of INotifyPropertyChanged ordinarily includes the following construct:

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public event PropertyChangedEventHandler PropertyChanged;protected virtual void OnPropertyChanged(        [CallerMemberName] string propertyName = null){    PropertyChangedEventHandler tempEvent = PropertyChanged;    if (tempEvent != null)    {        tempEvent(this, new PropertyChangedEventArgs(propertyName));    }}

The CallerMemberName attribute is used by a new compiler feature that automatically passes the name of the calling member to the target method. No longer is it necessary in ...