Difference/Similarities between ViewBag and ViewData in MVC

Differences
ViewData	ViewBag
ViewData is a dictionary of objects that are stored and retrieved using strings as keys. Such as: ViewData[“key”]=value; // stored value in ViewData String n = ViewData[“Key”]; // Retrieve Data	ViewBag uses the dynamic feature that was introduced in to c# 4. It allows an object to have properties dynamically add to it. ViewBag.name = “Jacob”; // here name is the dynamic property of //ViewBag object
Similarities
Both ViewData ans ViewBag are used to pass data from a controller to a View.          Both ViewData & ViewBag does not provide compile time error checking Example Controller class   public ActionResult Index()         {             ViewBag.country = new List<string>()             {                 "USA",                 "INDIA",                 "UK"             };             return View();         } View <ul>     @foreach (string  country in ViewBag .coun)     {         <li>@country</li>     } </ul>          Note  : In View here you are accessing dynamic property of coun , which is not existing in Controller class. But in case Both ViewData & ViewBag does not provide compile time error checking