mvc interview questions codeproject

Just hit save and refresh the browser. “What if we have want that on “Submit1” button click it should invoke “Action1” and on the “Submit2” button click it should invoke “Action2”.”. The best place to register the custom view engine in the ViewEngines collection is the global.asax file. NET MVC interview perspective. Bundling and minification helps us improve request load times of a page thus increasing performance. How to send result back in JSON format in MVC. For that it came up with something called Asp.net Web Forms. End user browses to the screen of the money transfer. He is Microsoft Certified Solution Developer for .NET(MCSD.NET) since 2005. Below is a forged site created by an attacker which looks a game site from outside, but internally it hits the bank site for money transfer. Each request coming to controller is for a specific Action Method. This book has been written to prepare yourself for ASP.NET MVC Interview. It creates controller code, view and also table structure as shown in the below figure. interview questions for ITIL Service Transition (1) interview questions for joomla (1) interview questions for maongodb (1) interview questions for mapreduce (1) interview questions for Measuring Social Media ROI (1) interview questions for MS Excel (1) interview questions for MS project (1) interview questions for MVC framework (1) For instance if you choose “using Entity framework” template the following code is generated. The following code example, “ShowBooks” is an example of an Action method. CRUD stands for create, read, update and delete. So the Customer viewmodel class has three properties. If you understand following key concepts, you will definitely feel more comfortable during an interview. Why you have used <%= Html.TextBox("LastName") %>, Good Article. How to implement Windows authentication for MVC? Note: It’s difficult to remember all the 12 types. The below code will create a simple URL which helps to navigate to the “Home” controller and invoke the GotoHome action. For example conside the below screen of a online bank. 20 Jun 2014 CPOL. Partial view is a reusable view (like a user control) which can be embedded inside other view. Step 2: Once you have created the project you will notice that the controller now inherits from ApiController and you can now implement POST, GET, PUT, and DELETE methods of the HTTP protocol. It provides extensive support for URL Routing that helps to make. What is difference between TempData and ViewData ? You can see the below code the first form is posting to “Action1” and the second form will post to “Action2” depending on which “Submit” button is clicked. We can implement pre-processing logic or cancellation logic in these methods. Explain the concept of View Model in MVC? How can we navigate from one view to other view using a hyperlink? As it is bundled with ASP.NET MVC framework. ASP.NET MVC Interview Questions and Answers. For instance, for Razor the extension is “cshtml”; for aspx, the view extension is “.aspx”, so in the same way for our custom view, we need to provide an extension. What is the difference between Partial and RenderPartial. You can see in the below code I have decorated the Default1Controller with the MyActionAttribute class which was created in the previous code. In this post we will build our quiz application with an easy and simple approach. So, Tempdata can be used to maintain data between redirects, i.e., from one controller to the other controller. In ASP.NET MVC, we have many built-in ActionResults type: For a complete list of available ActionResults types with Helper methods, please click here. You can use Windows or Forms authentication for MVC. This is much user friendly as compared to scrolling through the “routeconfig.cs” file and going through the length line of code to figure out which URL structure is mapped to which action. Important Note: All public methods of a Controller in ASP.NET MVC framework are considered to be Action Methods by default. It’s divided into three broader sections, Model, View, and Controller. The below code needs to be put in the ASPX or Razor view. What kind of events can be tracked in AJAX? (Please refer to REST in WCF chapter.). As the name says view model this class has the gel code or connection code which connects the view and the model. Writing custom code for parsing WSDL is a heavy duty task. In the Ajax way we can create two different functions “Fun1” and “Fun1” , see the below code. But WCF SOAP also does the same thing, so how does WebAPI differ? http://www.dotnetinterviewquestions.in/article_explain-mvc-application-life-cycle_210.html. Nice, but one or more technical question not covered. On the other hand, in ASP.NET MVC, a common controller for all pages processes the requests. Display mode displays views depending on the device the user has logged in with. WebAPI is built from scratch and the only goal is to create HTTP services using REST. So if you want to create an AJAX asynchronous hyperlink by name GetDate which calls the GetDate function in the controller, below is the code for that. Bundling helps us combine multiple JavaScript and CSS files in to a single entity thus minimizing multiple requests in to a single request. I would love to incorporate them in this article so that others are benefited. Core features of ASP.NET MVC framework are: Follow for detailed understanding of the above mentioned core features. So we can convert the inline action filter to an action filter attribute. So writing parsing logic for that is very easy. The route attribute says that the "GotoAbout" can be invoked using the URL structure "Users/about". "View" is user interface to render domain data. How can we use two ( multiple) models with a single view? Areas help you to group functionalities in to independent modules thus making your project more organized. Below is the code snippet for that. There are six broader events which occur in MVC application life cycle below diagrams summarize it. For instance if you want to display a HTML textbox on the view , below is the HTML helper code. Now hence forth when the end user sends request back he has to always send the secret token. Many components of the three layered architecture are part of MVC. 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. This gives us opportunity to write unit tests and automate manual testing. In this way we have HTML helper methods for every HTML control that exists. The purpose of this article is to quickly brush up your MVC knowledge before you go for MVC interviews. Answer: Yes, MVC offers an opportunity to automate the manual testing system and apply write unit tests. [A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\. Take a scenario where you have a view with two submit buttons as shown in the below code. Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages. How can we enable data annotation validation on the client side? With WCF you can implement REST, so why WebAPI? The route mapping code is written in "RouteConfig.cs" file and registered using "global.asax" application start event. Note: - There is nothing as such called as MVC life cycle. Refreshed and modernized default project templates, Enhanced support for asynchronous methods, DefaultValueAttribute in Action-Method Parameters. So in the binder we can write the mapping logic between the UI and the model. Razor was introduced in MVC 3. In case the interviewer complains that the above approach is not AJAX this is where the second approach comes in. All the other actions need to be attributed with the Authorize attribute so that any unauthorized user making a call to these controllers will be redirected to the controller (in this case the controller is “Login”) which will do the authentication. This article does not teach Asp.net MVC step by step, it’s a last minute revision sheet before going for MVC interviews. [A-Za-z]{2,4}", ~/Scripts/jquery.validate.unobtrusive.js", we need to and replace datetime.now value, this replaced data has to sent for display, We will create the object of Mycustome view, set the path where the views will be stored, logic so that it can be registered in the view engine collection, so that it can be registered in the view engine collection, Step3 :- register this object in the view engine collection. A view model is a simple class which represents data to be displayed on the view. To be specific the MVC request goes through various steps of execution and that's what is termed as MVC application life cycle. What is the difference between ActionResult and ViewResult? You can easily find detailed examples for implementation of ViewBag, ViewData and TempData here. How do you check for AJAX request with C# in MVC.NET? Is MVC different from a three layered architecture? C#.NET Interview Questions and Answers. If you have created the model object yourself you can explicitly call TryUpdateModel in your controller to check if the object is valid or not. And then bind that view model with the view. In the below code you can see we are making an AJAX POST call to a URL /MyAjax/getCustomer. This is a feature introduced in MVC 5. Sometimes you would like to compare the value of one field with another field, we can use the Compare attribute. By using the "Route" attribute we can define the URL structure. If we want our controller to have a Non Action Method, we need to explicitly mark it with NonAction attribute as follows: One of the core features of ASP.NET MVC is that it separates the input and UI logic from business logic. For example, in ASPX to display simple time, we need to write: As per Microsoft, Razor is more preferred because it’s light weight and has simple syntaxes. For example consider the below web request to a page . We can define routing rules for the engine, so that it can map incoming request URLs to appropriate controller. Below is the code snippet for that. For Windows authentication you need to modify the web.config file and set the authentication mode to Windows. 1) What is ASP.NET MVC? If we have multiple filters, what’s the sequence for execution? and answers are excellent too. Most popular ASP.NET MVC and related Online Courses The Complete ASP.NET MVC 5 Course. by Shivprasad koirala, Marla Sukesh. You also can try most frequently asked .NET Interview Q&A for android App Offline. This form calls a controller action called getCustomer. Figure: Difference between tempdata, viewdata, and viewbag, Win 1000000 US$