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Asp .net MVC Questions and Answers-2

Asp Dot net MVC Questions and Answers

Asp .net MVC Questions and Answers

11) Explain the role of “ActionFilters” in MVC?
In MVC “ ActionFilters” help you to execute logic while MVC action is executed or its executing.

12) Explain what are the steps for the execution of an MVC project?
The steps for the execution of an MVC project includes
Receive first request for the application
Performs routing
Creates MVC request handler
Create Controller
Execute Controller
Invoke action
Execute Result

13) Explain what is routing? What are the three segments for routing is important?
Routing helps you to decide a URL structure and map the URL with the Controller.
The three segments that are important for routing is
ControllerName
ActionMethodName
Parameter

14) Explain how routing is done in MVC pattern?
There is a group of routes called the RouteCollection, which consists of registered routes in the application.  The RegisterRoutes method records the routes in this collection.  A route defines a URL pattern and a handler to use if the request matches the pattern. The first parameter to the MapRoute method is the name of the route. The second parameter will be the pattern to which the URL matches.  The third parameter might be the default values for the placeholders if they are not determined.

15) Explain using hyperlink how you can navigate from one view to other view?
By using “ActionLink” method as shown in the below code. The below code will make a simple URL which help to navigate to the “Home” controller and invoke the “GotoHome” action.
Collapse / Copy Code
<%= Html.ActionLink(“Home”, “Gotohome”) %>

16) Mention how can maintain session in MVC?
Session can be maintained in MVC by three ways tempdata, viewdata, and viewbag.

17) Mention what is the difference between Temp data, View, and View Bag?
Temp data: It helps to maintain data when you shift from one controller to other controller.
View data: It helps to maintain data when you move from controller to view
View Bag: It’s a dynamic wrapper around view data

18) What is partial view in MVC?
Partial view in MVC renders a portion of view content. It is helpful in reducing code duplication. In simple terms, partial view allows to render a view within the parent view.

19) Explain how you can implement Ajax in MVC?
In Ajax, MVC can be implemented in two ways
Ajax libraries
Jquery

20) Mention what is the difference between “ActionResult” and “ViewResult” ?

“ActionResult” is an abstract class while “ViewResult” is derived from “AbstractResult” class.  “ActionResult” has a number of derived classes like “JsonResult”, “FileStreamResult” and “ViewResult” “ActionResult” is best if you are deriving different types of view dynamically.

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