How does Microsoft implement automated properties without "set"? (c#)

As I understand开发者_如何学JAVA, when using automated properties, one must write both set and get methods. However, when I look at Microsoft's System.Exception, there are some properties that clearly does not follow this demand, for instance: http://msdn.microsoft.com/en-us/library/system.exception.innerexception.aspx.

Can someone please explain me how can this be?

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When using an automatic property, one never writes set and get methods. The compiler provides both for you.

If you see a property without a set, or without a get, it was defined the long way, and not an automatic property.

The fact that the backing property is a legal C# name, and not a compiler-reserved name, is another clue that you're looking at a manual property. So is the fact that this property has been around since long before automatic properties were implemented.

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Sorry?

What about "no public set"?

Can be.... protected or private and thus be filtered in the documentation.