実践的なパターン: テストの容易性を高める設計OneTime binding sends the source to the target when the application is started or the DataContext changes. OneWay binding sends the source to the target as well. However, if the source implements the INotifyPropertyChanged interface, the target will receive updates when the source is updated. TwoWay binding sends the source data to the target and if there are changes in the target property's value
