Tutorial :C# Call Graph Generation Tool


I just got a heaping pile of (mostly undocumented) C# code and I'd like to visualize it's structure before I dive in and start refactoring. I've done this in the past (in other languages) with tools that generate call graphs.

Can you recommend a good tool for facilitating the discovery of structure in C#?


In addition to the tools mentioned here I've seen (through the tubes) people say that .NET Reflector and CLR Profiler have this functionality. Any experience with these?


NDepend is pretty good at this. Additionally Visual Studio 2008 Team System has a bunch of features that allow you to keep track of cyclomatic complexity but its much more basic than NDepend. (Run code analysis)


Concerning NDepend, it can produce some usable call graph like for example (image full size here)

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Find more explanations about NDepend call graph here.


It's bit late, but http://sequenceviz.codeplex.com/ is an awesome tool that shows the caller graph/Sequence diagram. The diagrams are generated by reverse engineering .NET Assemblies.


I've used doxygen to some success. It's a little confusing, but free and it works.


Visual Studio 2010.

Plus, on a method-by-method basis - Reflector (Analyzer (Ctrl+R); "Depends On" and "Used By")


I'm not sure if it will do it over just source code, but ANTS Profiler will produce a call graph for a running application (may be more useful anyway).


SequenceViz and DependencyStructureMatrix for Reflector might help you out: http://www.codeplex.com/reflectoraddins


As of today (June 2017), the best tool in class is Resharper's Inspect feature. It allows you to find all incoming calls, outgoing calls, value origin/destination, etc.

The best part of ReSharper, compared to other tools mentioned above: it's less buggy.

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