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15 Essential ASP NET MVC Interview Questions and Answers

In contrast, RenderPartial will render the specified view inline without calling any action method. This function is required when we call render() manually before the end of a given action. This function is called before the view is rendered and after controller action logic.

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Any large ASP.NET MVC project has many controllers, views, and model classes. With time, it will become very difficult to manage it using the default MVC project structure.

Explain the role of components Presentation, Abstraction, and Control in MVC?

The reason for the exception can be anything and so is the source of the exception. You understand that decorating the properties in a model with an Attribute can make that property eligible for Validation. ViewBag doesn’t require typecasting .net razor developer for complex data type. ViewData requires typecasting for complex data type and check for null values to avoid error. ViewData is a dictionary of objects that is derived from ViewDataDictionary class and accessible using strings as keys.

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ASP.Net provides much better performance than scripting languages. Using this default route – .axd/, we can prevent the requests for the web resources files like – WebResource.axd or ScriptResource.axd from passing to a controller. If the client made a request, before leaving the dev tools of the client, I would read any responses sent from the server to pinpoint the exact point of failure. A “not found” response would lead me to believe the endpoint isn’t registered in my app correctly.

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Enter your email to receive your guide, and be ready for whatever questions come your way. See the most common questions in every category assessed by employers and be ready for anything. The My Interview Practice simulator uses video to record your interview, so you feel pressure while practicing, and can see exactly how you came across after you’re done. You can even share your recorded responses with anyone to get valuable feedback. With interview simulators, you can take realistic mock interviews on your own, from anywhere.

  • It is a TempDataDictionary class type and instance property of the Controller base class.
  • It provides the latest web standards and many features like routing, model binding, model validation, dependency injection, web APIs, razor view engine, filters, etc.
  • There are total of nine return types we can use to return results from the controller to view.
  • In order to send the result back in JSON format in MVC, you can use “JSONRESULT” class.
  • They typically design codes and tests to debug and implement software applications.

The controller provides model data to the view, and interprets user actions such as button clicks. In some cases, the controller and the view https://remotemode.net/ are the same object. Then the controller actions can query the ModelState to discover whether the request is valid and react accordingly.

What is the difference between ViewData and ViewBag in ASP.NET MVC?

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. Top tech companies have several positions for MVC developers, engineers, programmers, coders, architects, and consultants.

  • If you have used LINQ before, describe the projects where you’ve done so.
  • Those given above are some of the major considerations for hiring an ASP.NET MVC developer.
  • Our online task wizard lets you build tests using your own resources.
  • Here are the following two approaches to implementing Ajax in MVC.
  • You can even use a delegate method to generate additional effects in a class.

In ASP.Net MVC 4 there is a support for Web API which uses to build the service using HTTP verbs. Using object which implements interface – IRouteConstraint.

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