Asp Net Mvc Practical Interview Questions

ASP.NET MVC is the most demanding framework for building web & mobile applications. .NET MVC Framework offers a bunch of class libraries to help you develop high performance, highly scalable & testable apps. To become a .Net MVC expert developer you need to join MVC training for learning C# which is a commonly used programing language, OOPS, SQL Server, and a bunch of front-end technologies i.e HTML, JavaScript, JQuery.Along with learning refer to the MVC interview question answer pdf to crack your job interview & become industry competent.

MVC stands for Model-View-Controller. It is a software design pattern that was introduced in the 1970s. Also, the MVC pattern forces a separation of concerns, which means the domain model and controller logic are decoupled from the user interface (view). As a result, maintenance and testing of the application become simpler and easier.

I hope the above questions and answers will help you with your ASP.NET MVC Interview. All the above interview Questions have been taken from our newly released eBook ASP.NET MVC Interview Questions and Answers.

This eBook has been written to make you confident in ASP.NET MVC with a solid foundation. Also, this will help you to use ASP.NET MVC in your real project.

3 What is JsonResultType in MVC?


Action methods on controllers return JsonResult (JavaScript Object Notation result) that can be used in an AJAX application. This class is inherited from the “ActionResult” abstract class. Here Json is provided one argument which must be serializable. The JSON result object that serializes the specified object to JSON format.

Learn more here – ActionResult Return Type in MVC 3.0

Answer – Tempdata

  • TempData is a dictionary object derived from the TempDataDictionary class.
  • TempData is used to pass data from the current request to a subsequent request, in other words in the case of redirection.
  • The life of a TempData is very short and it retains its value for a short period of time.
  • It requires typecasting for complex data type as I’ve used in my example:
  • @foreach (var item in (List)TempData[“EmployeeRegistration”])
  • You can retain its value using the Keep method for subsequent requests.
  • Answer

    ViewBag is dynamic property that takes advantage of new dynamic features in C# 4.0. Its also used to pass data from a controller to a view. In short, The ViewBag property is simply a wrapper around the ViewData that exposes the ViewData dictionary as a dynamic object. Now create an action method “StudentSummary” in the “DisplayDataController” controller that stores a Student class object in ViewBag.

    Thereafter create a view StudentSummary (“StudentSummary.cshtml”) that shows student object data. ViewBag does not require typecasting for complex data type so you can directly access the data from ViewBag.

    Here we used one more thing, “ViewBag.Title”, that shows the title of the page.

    Learn more here – Displaying Data on View From Controller

    Explain MVC application life cycle?

    Any web application has two main execution steps, first understanding the request and depending on the type of the request sending out an appropriate response. MVC application life cycle is not different it has two main phases, first creating the request object and second sending our response to the browser.

    Creating the request object,

    The request object creation has four major steps. The following is a detailed explanation of the same.

    Step 1 – Fill route

    MVC requests are mapped to route tables which in turn specify which controller and action to be invoked. So if the request is the first request the first thing is to fill the rout table with routes collection. This filling of the route table happens the global.asax file

    Step 2 – Fetch route

    Depending on the URL sent “UrlRoutingModule” searches the route table to create “RouteData” object which has the details of which controller and action to invoke.

    Step 3 – Request context created

    The “RouteData” object is used to create the “RequestContext” object.

    Step 4 – Controller instance created

    This request object is sent to “MvcHandler” instance to create the controller class instance. Once the controller class object is created it calls the “Execute” method of the controller class.

    Creating a Response object

    This phase has two steps executing the action and finally sending the response as a result to the view.

    Here is a complete article on ASP.Net MVC Life Cycle.

    Q Enumerate the different MVC components and describe the role of each component.

    The role of different MVC components is as follows:Â

  • Presentation: The component deals with the visual representation of a particular abstraction in the web application.
  • Control: This component manages the consistency and uniformity between the abstraction within the MVC system and their presentation to the user. It also communicates with other controls within the system.
  • Abstraction: This component is the business domain functionality within the application.
  • ASP.NET MVC Interview Questions with Answers | ASP.NET Interview Questions

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