In my sample code I have the following:

namespace WebUx.Filters
{
    [AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, AllowMultiple = false, Inherited = true)]
    public sealed class InitializeSimpleMembershipAttribute : ActionFilterAttribute
    {
        private static SimpleMembershipInitializer _initializer;
        private static object _initializerLock = new object();
        private static bool _isInitialized;

        public override void OnActionExecuting(ActionExecutingContext filterContext)

Can someone explain to me how this works? Does this automatically get attached to every class method or just the controller classes? I am using both MVC and also the web api. Will it also attach to web api methods?

c# asp.net asp.net-mvc asp.net-mvc-3
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