To get an overview for the CodeDom classes in .Net I tried to create a class diagramm using Visual Studio 2010 built-in class designer, but I did not find the way how I could feed the .Net built-in classes and types into it, the only I can get is to add my own classes from Class View window.
I also tried it with UML diagramms in VS2010, and I couldn't import the classes. I was looking for a similar option in MS Visio and though it does provide support for class diagramm I could not generate something there.
I found the AutoDiagrammer project on CodeProject webpage and tried to use it as a Reflector Add-In, but with no succcess either. I get only the message "Waiting for assembly" in the top of the add-in window and nothing happends.
I was able to generate a class diagram for the entire namespace by:
- creating a new blank class diagram
- opening View->Object Explorer
- entering "codedom" and search
- drag and droping the System.CodeDom namespace to the blank diagram
I hope this is what you meant.
来源：https://stackoverflow.com/questions/8152000/how-to-get-a-nice-class-diagram-for-built-in-net-classes