All XAML developers are well aware of INotifyPropertyChanged interface. This interface is key to the data binding. Every ViewModel class or ViewModelBase abstract class implements this interface. One of the biggest issue with it is that the PropertyChangedEventHandler delegate event argument, PropertyChangedEventArgs constructor accepts the property name as string value. This can introduce bug in your code because of "MAGIC STRINGS" , where by which if developer misspell the property name or you require to rename your property , then it should be done very carefully otherwise your data binding can go completely for a toss and you would go in circles to figure out what the issue is. Let me illustrate what I am talking about with the code snippet below. Old way implementation public class CustomerViewModel : INotifyPropertyChanged { private string customerNameValue = String.Empty; private string phoneNumberValue = String.Empty; public event PropertyChangedEventHandler PropertyChanged; private void NotifyPropertyChanged(String propertyName) { if (PropertyChanged != null) { PropertyChanged(this, new PropertyChangedEventArgs(propertyName)); } } public string CustomerName { get { return this.


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This article is related to

.NET,How To,Linq,MVVM