Top 47 Net Interview Questions

This return type is used to send binary output in response. This return type is used to return JavaScript code that will run in the browser. This phase has two steps executing the action and finally sending the response as a result to the view. Authentication means giving users access to a specific service on verification of identity using username and password. It assures that the correct user is logged in for a specific service, and exemplary service is provided to the user based on their role.

• This question is a basic knowledge test that allows you to show your understanding of the .NET framework.
• Your answer should show the interviewer that you have experience with this framework.
• Razor minimizes the number of characters and keystrokes required in a file, and enables a fast coding workflow.
• It’s purpose is to provide an environment for executing managed code and it also provides services that support this execution.

Custom HTML Helpers also can be created by overriding “HtmlHelper” class. Custom HTML Helpers also can be created by overriding “HtmlHelper” class. It can also be returned directly from controller methods. ViewBag is dynamic property that mvc programmer takes advantage of new dynamic features in C# 4.0. It’s 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.

Frequently asked questions

During registration, dependencies require their lifetime to be defined. The lifetime of service decides under what condition the instance of the service will be created and till what time it will be live. Razor Pages is a new server-side framework which works on a page-based approach to render applications in .NET Core. It consists of a garbage collector, JIT compiler, low-level classes, and primitive data types. Garbage collection and machine code compilation are its primary functions.

It is the visual representation of a specific abstraction within the application. Using object which implements interface — IRouteConstraint. Unlike code expressions that are evaluated and sent to the response, it is the blocks of code that are executed. This is useful for declaring variables which we may be required to be used later. RedirectToRoute() — Redirect to action from the specified URL but URL in the route table has been matched. RedirectToAction() — To Redirect to different action which can be in same controller or in different controller. OnFailure — Javascript method name to be given here and this will be called when AJAX request is failed.

What is ViewState information stored?

Therefore, you got everything inside of one file, and it just works. Candidates who have the best coding skills, code cleanliness, and problem-solving skills, are those https://remotemode.net/ who gain the highest test score. Powered by the RealLifeTesting™ methodology, they test your applicants’ skill set anywhere in the world with convenience and accuracy.

ASP.NET is a framework that extends the .NET developer platform with components to build specific web applications for .NET and C# programming languages. There are common questions that a potential employer may ask to determine how much you know about app development, and specifically, the ASP.NET framework. Understanding these questions can help you prepare for an interview to be an ASP.NET MVC (model-view-controller) developer. In this article, we list the top 35 ASP.NET MVC interview questions and answers you might provide. The problem is that if the exceptions are not handled, then the default MVC behavior shows the dreaded yellow screen of death. Thus, the exceptions need to be dealt with very carefully. This filter can be stored inside the Filters folder in the web project of the solution.

Skills in High Demand by Clients

With interview simulators, you can take realistic mock interviews on your own, from anywhere. Get the realistic interview experience you need to master the interview. If you’re getting ready to interview for a position as a .NET developer, you can prepare by researching the company as much as possible. Learn about the 9 things you should research before an interview. The Validation Summary helper method generates an unordered list of validation messages that are in the Model State Dictionary object.

• For example in the below code we have decorated the “GotoAbout” action with the route attribute.
• Traditionally, pre-employment assessments were manual, time-consuming, cost ineffective, and had a tendency to be biased.
• ASP.NET MVC test also includes programming tasks with code review challenges to test the MVC skills of the candidates.
• MVC is one of the most popular development frameworks for Web applications.
• User events trigger the functions which are stored inside your controller.

Display Modes can also be used along with the previous feature so the users will simply build off of the site they just created. It simplifies the ways to implement different versions of view for different devices. There is total of nine return types we can use to return results from a controller to view. The base type of all these result types is ActionResult. An action filter is a type of filter in ASP.NET MVC that is executed to implement logic before and after a controller is executed. These provide an additional attribute that is applied to a section of the controller or the whole controller to modify it. These attributes are defined under System.Attribute class.

.NET is an OOP or an AOP framework?

Once you have finished developing codes for required applications, you need to compile those application codes to Common Intermediate Language. This method allows trapping errors at the whole controller level. It is called whenever there is an unhandled error in the controller. Each entry in the tree is called a node and is represented by a TreeNode object. A node that contains other nodes is called a parent node.

• You can utilise any of these filters to implement filtering.
• We can override the ‘OnException’ event in the controller and set the result to the view name needed to be invoked when an error occurs.
• You will be able to showcase your self-confidence and deliver answers in the best possible way.
• In this article, we list the top 35 ASP.NET MVC interview questions and answers you might provide.

He has over two decades of experience designing and developing sophisticated enterprise web applications using various technologies, most recently with ASP.NET MVC. Asynchronous actions won’t block the executing thread if it waits for an I/O operation.

Mention what is the difference between ViewData and ViewBag?

The best practice is to have controllers based on functionality. For example, if you have a form for input and you need a controller for that, create a controller called “form controller”. Application development process with ASP.NET MVC is more complex compared with web forms-based applications. The default route prevents requests for a web resource file such as Webresource.axd or ScriptResource.axd from being passed to the controller. Here are MVC interview questions for fresher as well as experienced candidates to get their dream job. A route attribute is defined on top of an action method.

This question is an opportunity to show your knowledge of a specific programming language. You can use this as an opportunity to discuss the benefits of object-oriented programming and how it has helped you in previous roles.