File Name: mvc 4 interview questions and answers .zip
MVC is one of the most popular development frameworks for Web applications.
What is MVC Model view controller? Can you explain the complete flow of MVC? Is MVC suitable for both windows and web application? What are the benefits of using MVC? Is MVC different from a 3 layered architecture?
What is the latest version of MVC? What is the difference between each version of MVC? What are routing in MVC? Where is the route mapping code written? Can we map multiple URLs to the same action? How can we navigate from one view to other view using hyperlink? How can we maintain session in MVC? What is the difference between tempdata,viewdata and viewbag?
What are partial views in MVC? How did you create partial view and consume the same? How can we do validations in MVC? Can we display all errors in one go? How can we enable data annotation validation on client side? What is razor in MVC? Why razor when we already had ASPX? How can you do authentication and authorization in MVC? How to implement windows authentication for MVC? How do you implement forms authentication in MVC? How to implement Ajax in MVC? What kind of events can be tracked in AJAX?
What is the difference between ActionResult and ViewResult? What are the different types of results in MVC? Can we create our custom view engine using MVC? What is WebAPI? MVC is architectural pattern which separates the representation and the user interaction. Its divided in three broader sections, Model, View and Controller.
Below is how each one of them handles the task. The View is responsible for look and feel. Model represents the real world object and provides data to the View. The Controller is responsible to take the end user request and load the appropriate Model and View. Below are the steps how control flows in MVC Model, view and controller architecture All end user requests are first sent to the controller.
The controller depending on the request decides which model to load. The controller loads the model and attaches the model with the appropriate view. The final view is then attached with the model data and sent as a response to the end user on the browser.
MVC architecture is suited for web application than windows. For window application MVP i. Model view presenter is more applicable. There are two big benefits of MVC:Separation of concerns is achieved as we are moving the code behind to a separate class file. By moving the binding code to a separate class file we can reuse the code to a great extent. Automated UI testing is possible because now the behind code UI interaction code has moved to a simple.
NET class. This gives us opportunity to write unit tests and automate manual testing. MVC is an evolution of a 3 layered traditional architecture. Many components of 3 layered architecture are part of MVC. So below is how the mapping goes. User interface. Middle layer User interface Data access layer. Model view controller architecture View. Controller Model. Data access layer. When this note was written, four versions where released of MVC.
So the latest is MVC 4. Below is a detail table of differences. But during interview its difficult to talk about all of them due to time limitation. So I have highlighted important differences which you can run through before the interviewer. This is defined by adding an entry in to the routes collection using the maproute function. Below is the under lined code which shows how the URL structure and mapping with controller and action is defined. The route mapping code is written in the global.
Yes , you can , you just need to make two entries with different key names and specify the same controller and action.
By using ActionLink method as shown in the below code. For instance you can see in the below code snippet the DisplayCustomer action can only be invoked by HttpGet. If we try to make Http post on DisplayCustomer it will throw an error. Sessions can be maintained in MVC by 3 ways tempdata ,viewdata and viewbag. Figure:- difference between tempdata , viewdata and viewbag Temp data: -Helps to maintain data when you move from one controller to other controller or from one action to other action.
In other words when you redirect,tempdata helps to maintain data between those redirects. It internally uses session variables. View data: - Helps to maintain data when you move from controller to view.
View Bag: - Its a dynamic wrapper around view data. When you use Viewbag type casting is not required. It uses the dynamic keyword internally. Figure:-dynamic keyword Session variables: - By using session variables we can maintain data from any entity to any entity. Below is a summary table which shows different mechanism of persistence. Partial view is a reusable view like a user control which can be embedded inside other view.
For example lets say all your pages of your site have a standard structure with left menu, header and footer as shown in the image below. Figure:- partial views in MVC For every page you would like to reuse the left menu, header and footer controls. So you can go and create partial views for each of these items and then you call that partial view in the main view.
When you add a view to your project you need to check the Create partial view check box. Figure:-createpartialview Once the partial view is created you can then call the partial view in the main view using Html.
RenderPartial method as shown in the below code snippet. One of the easy ways of doing validation in MVC is by using data annotations. Data annotations are nothing but attributes which you can be applied on the model properties. For example in the below code snippet we have a simple customer class with a property customercode.
ThisCustomerCode property is tagged with a Required data annotation attribute. In other words if this model is not provided customer code it will not accept the same. In order to display the validation error message we need to use ValidateMessageFor method which belongs to the Html helper class. IsValid property and accordingly we can take actions.
If you want to check string length, you can use StringLength. ErrorMessage; 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. Its a two-step process first reference the necessary jquery files.
Its a light weight view engine. Till MVC we had only one view type i. Razor is clean, lightweight and syntaxes are easy as compared to ASPX. For example in ASPX to display simple time we need to write.
In this pattern, the model represents the shape of the data and business logic. It maintains and preserves the data of the application. Model objects retrieve and store model state in a database. The view is basically and technically a user interface. The view segment displays the data-using model to the user and also enables them to modify the data.
This is a curated list of most frequently asked. NET interview question and answer that an interviewer might ask during the interview. In this list of ASP. NET interview question with detailed answers to help you clear the job interview easily. We have covered 50 most important.
What is MVC Model view controller? Can you explain the complete flow of MVC? Is MVC suitable for both windows and web application?
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If you are getting ready for the MVC interview, then we have the following set of quick questions that could be asked. These questions include those particular questions which were preferred by the majority of the interviewers during the interview session. By going through these questions, you will get an insight as to what could be asked and how you can respond more effectively. Also, it would be recommended that the interview answers will leave pleasant impressions only when you answer them in a positive way and with a positive vibe that your body needs to reflect. Therefore it's suggested to practice these ASP.
- Я же угада… - Но она замолкла на полуслове. На ее пальце было не кольцо Танкадо. Это было другое кольцо - платиновое, с крупным сверкающим бриллиантом. Сьюзан охнула.
Три шкафа-картотеки стояли в углу рядом с маленьким столиком с французской кофеваркой. Над Форт-Мидом высоко в небе сияла луна, и серебристый свет падал в окно, лишь подчеркивая спартанскую меблировку. Что же я делаю. - подумал Бринкерхофф.
Это означало, что на его, Халохота, стороне фактор внезапности, хотя вряд ли он в этом так уж нуждается, у него и так все козыри на руках.
Она была абсолютно уверена, что не вводила такой команды - во всяком случае, намеренно. Подумала, что, может быть, спутала последовательность нажатия клавиш. Немыслимо, - подумала. Согласно информации, появившейся в окне, команда была подана менее двадцати минут. Сьюзан помнила, что за последние двадцать минут вводила только свой персональный код, когда выходила переговорить со Стратмором.
ТРАНСТЕКСТ работает с чем-то очень сложным, фильтры никогда ни с чем подобным не сталкивались. Боюсь, что в ТРАНСТЕКСТЕ завелся какой-то неизвестный вирус. - Вирус? - снисходительно хмыкнул Стратмор, - Фил, я высоко ценю твою бдительность, очень высоко. Но мы с мисс Флетчер проводим диагностику особого рода.
Сьюзан промолчала. Она поняла: все дело в деньгах. Она перенеслась мыслями в тот вечер, когда президент Джорджтаунского университета предложил Дэвиду повышение - должность декана факультета лингвистики. Президент объяснил, что преподавательских часов будет меньше, бумажной работы больше, - но гораздо выше будет и жалованье.
MVC is the framework used to build Web applications sdstringteachers.org and C#. In this article, I list the top 50 MVC questions and their answers.Vivienne B. 20.12.2020 at 06:37
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