Asp.Net MVC Interview Question and Answer

View: It contains the layout page. Before any view is rendered, viewstart page is rendered. View might have markup tags like body, html, head, title, meta etc. View is not lightweight as compare to Partial View. Partial View: It does not contain the layout page. Partial view does not verify for a viewstart.cshtml.We cannot put common code for a partial view within the viewStart.cshtml.page. Partial view is designed specially to render within the view and just because of that it does not consist any mark up. We can pass a regular view to the RenderPartial method.

ViewData:- ======== 1. ViewData is a dictionary object that is derived from ViewDataDictionary class. 2. ViewData is a property of ControllerBase class. 3. ViewData is used to pass data from controller to corresponding view. 4. It’s life lies only during the current request. 5. If redirection occurs then it’s value becomes null. 6. It’s required typecasting for getting data and check for null values to avoid error. ViewBag:- ======= 1. ViewBag is a dynamic property that takes advantage of the new dynamic features in C# 4.0. 2. Basically it is a wrapper around the ViewData and also used to pass data from controller to corresponding view. 3.ViewBag is a property of ControllerBase class. 4. It’s life also lies only during the current request. 5. If redirection occurs then it’s value becomes null. 6.It doesn’t required typecasting for getting data