[DebuggerTypeProxy] is very useful attribute when you have a class that inherits from another class and that one inherits from another one, and some of the classes contain collections of items and hundreds of properties that in fact are not important to you… Strictly speaking, when displaying class’ members while debugging makes you feel like quitting the job. [b]We decide how to display object while debugging[/b] Exactly! You can set a proxy that will inform debugger how you want a type to be displayed...