MVC Custom Attribute Validation Login

1. Create a new custom attribute class

 Public classBasefilterattribute:filterattribute, Iauthorizationfilter {/// <summary>        ///Custom Extended properties, verifying user logon/// </summary>        /// <param name= "Filtercontext" >The AuthorizationContext class encapsulates information about the controller, the HTTP context, the request context, the routing data, the action descriptor, and the result of the operation. </param>         Public voidonauthorization (AuthorizationContext filtercontext) {if(Filtercontext.httpcontext = =NULL)            {                Throw NewException ("The HTTP context does not exist! "); }            if(FilterContext.HttpContext.Session = =NULL)            {                Throw NewException ("Server session is not available! "); }            if(FilterContext.ActionDescriptor.IsDefined (typeof(Allowanonymousattribute),true))return; if(Filtercontext.httpcontext.session[confighelper.sessioncookiekey]! =NULL)return; //if (filtercontext.httpcontext.request.cookies[confighelper.sessioncookiekey]==null)//Filtercontext.result = new Redirectresult ("~/views/account/login.cshtml");            if(Cookieshelper.getcookie (confighelper.sessioncookiekey) = =NULL) Filtercontext.result=NewRedirectresult (Confighelper.sessioncookiereturnurl); }    }

2. Add the custom attribute to the associated controller class

[Basefilter]      Public class Prelistcontroller:basecontroller    {    }

3. Set up methods that are not validated to allow anonymous access

        [allowanonymous]        public  actionresult Login ()        {            return  View ();        }

MVC Custom Attribute Validation Login