ASP. NET MVC3 implements user login verification

Original: ASP. NET MVC3 Implement user login verification

Customize an authorization filter class that inherits from Authorizeattribute:

Using system;using system.web;using system.web.mvc;namespace mvcapplication1{public    class Dwauthorizeattribute: Authorizeattribute {//<summary>//        Determine if the user is logged in//</summary>//        <param name= " Filtercontext "></param> public        override void Onauthorization (AuthorizationContext filtercontext)        {            HttpContextBase context = Filtercontext.httpcontext;            if (context. session["Loginuser"] = = NULL)                context. Response.Redirect ("~/user/login");}}}    

To constrain the action that requires login verification:

[Dwauthorize]public actionresult Index () {    return View ();}