Is it possible to find all the unused method in a solution?
I.e.
Private method not called inside the class or method which are called from methods which are not called
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It must be possible because Resharper seems to be able to do it. – Joel Etherton Mar 13 '14 at 16:03
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@Revious: I'm not sure if that's how Resharper does it, but for private methods I guess you can just look for it's name in the file (or more in case of a partial class). If you can't find it except in the declaration, the method is obviously unused. Note that this is not a 100% guarantee since everything can be called using reflection. – CKII Mar 13 '14 at 16:12
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I remember seeing a Microsoft video of test and it would show any code the test did not hit but I cannot find the reference. Search test. – paparazzo Mar 13 '14 at 16:18
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@Revious ReSharper likely does it using the same mechanism by which it finds usages. I'm not sure, but I think it has limited support for detecting dynamic uses, but I'm not sure if that also covers Reflection. It isn't always safe to remove a method that *looks* like it isn't used ;-) – Adam Houldsworth Mar 13 '14 at 16:36
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You can use static code analysis for this task if you have access to a Visual Studio Pro (or above). The relevant rule is CA1811. Please note that this method gives you a good starting point but might report false positives, so you should be cautious when you remove methods.
See this link for an overview of static code analysis.
Markus
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It's also possible to use NDepend following this article:
http://www.ndepend.com/DefaultRules/webframe.html?Q_Potentially_dead_Methods.html
Revious
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