class-designer

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