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    <p>What you are looking for has been solved in the concept of Aspect Oriented Programming (AOP).</p> <p>One example is <a href="http://www.sharpcrafters.com/solutions#ui" rel="nofollow">in PostSharp</a>, (Also, <a href="http://www.sharpcrafters.com/solutions/notifypropertychanged" rel="nofollow">see details here</a>) which lets you write your data/viewmodel classes like this:</p> <pre><code>[NotifyPropertyChanged] public class Shape { public double X { get; set; } public double Y { get; set; } } public class Rectangle : Shape { public double Width { get; set; } public double Height { get; set; } } </code></pre> <p>If you don't like PostSharp, I'm sure the other AOP frameworks out there has similar functionality.</p> <p><strong>EDIT</strong></p> <p>I just found <a href="http://code.google.com/p/notifypropertyweaver/" rel="nofollow">NotifyPropertyWeaver</a> which does this for you without requiring a full AOP framework. </p> <p>It uses the Mono.Cecil stuff to inject notification code during compilation and is installable either through NuGet (this is what I did) or from the project web site.</p> <p>By default, it doesn't even require attributes, (it automatically figures out which properties and classes need change notification) but you can be explicit also, like so:</p> <pre><code>[NotifyProperty] public int FooBar { get; set; } </code></pre> <p>One nice feature I found in it was the possibility to declare dependencies between properties. In this case, <code>RaisePropertyChanged("FoobarTimesTwo")</code> will be called whenever FooBar changes.</p> <pre><code>[DependsOn("FooBar")] public int FoobarTimesTwo { get { return FooBar * 2; } } </code></pre>
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    1. CO+1 interesting piece of work. the links to details provides coding ideas if one would like to do this him/herself.
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    2. COThank you for the quick reply, that is exactly what I need. Sadly it isn't free to use, but maybe I can figure it out or find some other AOP framework.
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