CODEWITHSUNDEEP
c#asp.net-mvc-3viewcontroller
Mats Hofman
Mats Hofman

Reputation: 7240

MVC get all action methods

Is there a way to get a list of all Actions Methods of my MVC 3 project?

Upvotes: 6

Views: 6715

Answers (2)

Moeri
Moeri

Reputation: 9294

This will give you a dictionary with the controller type as key and an IEnumerable of its MethodInfos as value.

        var assemblies = AppDomain.CurrentDomain.GetAssemblies(); // currently loaded assemblies
        var controllerTypes = assemblies
            .SelectMany(a => a.GetTypes())
            .Where(t => t != null
                && t.IsPublic // public controllers only
                && t.Name.EndsWith("Controller", StringComparison.OrdinalIgnoreCase) // enfore naming convention
                && !t.IsAbstract // no abstract controllers
                && typeof(IController).IsAssignableFrom(t)); // should implement IController (happens automatically when you extend Controller)
        var controllerMethods = controllerTypes.ToDictionary(
            controllerType => controllerType,
            controllerType => controllerType.GetMethods(BindingFlags.Public | BindingFlags.Instance).Where(m => typeof(ActionResult).IsAssignableFrom(m.ReturnType)));

It looks in more than just the current assembly and it will also return methods that, for example, return JsonResult instead of ActionResult. (JsonResult actually inherits from ActionResult)

Edit: For Web API support

Change

&& typeof(IController).IsAssignableFrom(t)); // should implement IController (happens automatically when you extend Controller)

to

&& typeof(IHttpController).IsAssignableFrom(t)); // should implement IHttpController (happens automatically when you extend ApiController)

and remove this:

.Where(m => typeof(ActionResult).IsAssignableFrom(m.ReturnType))

Because Web API methods can return just about anything. (POCO's, HttpResponseMessage, ...)

Upvotes: 10

Mark Keats
Mark Keats

Reputation: 1400

You can use this to reflect over the assemblies at runtime to produce a list of methods in Controllers that return ActionResult:

    public IEnumerable<MethodInfo> GetMvcActionMethods()
    {
        return
            Directory.GetFiles(Assembly.GetExecutingAssembly().Location)
                .Select(Assembly.LoadFile)
                .SelectMany(
                    assembly =>
                    assembly.GetTypes()
                            .Where(t => typeof (Controller).IsAssignableFrom(t))
                            .SelectMany(type => (from action in type.GetMethods(BindingFlags.Public | BindingFlags.Instance) 
                                                 where action.ReturnType == typeof(ActionResult) 
                                                 select action)
                                        )
                    );
    }

This will give you the actions, but not the list of Views (i.e. it won't work if you can use different views in each action)

Upvotes: 7

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