Define Interface Fields

I am curious if there is a way to define a field that is required in an interface.  Some of the .NET interfaces, such as the one I posted below, have explicit members that are created when you implement the interface but I wasn't sure if this was specific to the code behind in Visual Studios, or if there is a way to force this through attributes, special declarations, etc.  While an abstract base class could do this for me, I would prefer at this point to maintain this as an interface.
#region INotifyPropertyChanged Members
public event System.ComponentModel.PropertyChangedEventHandler PropertyChanged;

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Nathan_NorthcuttAuthor Commented:

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