How to use C# to find usages of a class or method?

Using visual-studio: How to use C# to find usages of a class or method? on newest questions tagged visual-studio – Stack Overflow

In Visual Studio, I can right-click a class or method and choose “Find usages”. That gives me a list of places in my solution where that piece of code is used. How can I do the same from my code?

source: http://stackoverflow.com/questions/11817473/how-to-use-c-sharp-to-find-usages-of-a-class-or-method
Using visual-studio: using-visual-studio