Create custom ActionInvoker

W skrócie ControllerActionInvoker jest wywoływany przez kontroler, aby wykonać akcję.
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Tworzymy własny ActionInvoker:

/// <summary>
    /// Custom Action Invoker. The ControllerActionInvoker is responsible for creating the parameters that are passed to a controller action.
    /// </summary>
    public class ContextActionInvoker : ControllerActionInvoker
    {

        public ContextActionInvoker(ControllerContext controllerContext)
            : base()
        {
         
        }

        /// <summary>
        /// Invokes the specified action. Override to log browsing.
        /// </summary>
        /// <param name="controllerContext">The controller context.</param>
        /// <param name="actionName">The name of the action.</param>
        /// <returns></returns>
        public override bool InvokeAction(ControllerContext controllerContext, string actionName)
        {
            HttpContextBase context = controllerContext.HttpContext;
            
            //Do sth

            return base.InvokeAction(controllerContext, actionName);

        }

    }

Tworzymy własny ControllerFactory. Przeładowywujemy funkcję GetControllerInstance, w której przypisujemy instancję własnego invoker'a.

 /// <summary>
    /// Custom Controller Factory
    /// </summary>
    public class ContextControllerFactory : DefaultControllerFactory
    {

        /// <summary>
        /// Gets the controller instance. Override to  put down custom ActionInvoker to ActionInvoker
        /// </summary>
        /// <param name="controllerType">Type of the controller.</param>
        /// <returns>A reference to the controller.</returns>
        protected override IController GetControllerInstance(Type controllerType)
        {

            IController controller = base.GetControllerInstance(controllerType);

            Controller contextController = controller as Controller;

            if (contextController != null)
            {

                var context = new ControllerContext(this.RequestContext, contextController);

                contextController.ActionInvoker = new ContextActionInvoker(context);

            }

            return controller;

        }

    }

CustomControllerFactory rejestrujemy w global.asax.cs

 protected void Application_Start()
        {
            //Register new Controller Factory 
            ControllerBuilder.Current.SetControllerFactory(typeof(ContextControllerFactory));

            RegisterRoutes(RouteTable.Routes);

        }