C Interview Questions And Answers By Shivprasad Koirala Pdf
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Explain MVC application life cycle? In this article we will explain MVC application life cycle. For more articles and videos visit us on www.
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free asp.net interview questions and answers pdf
This article does not teach Asp. If you want to learn MVC 5 in a short time i. I have tried my level best to cover what questions i have faced in MVC interviews. But i feel the below questions are not enough and in real MVC interview's much more is asked.
If you can share your question in the comment below. I would love to incorporate them in this article so that others are benefited. If your question is great and i like it i will ship you a free copy of my.
NET interview question book only in India sorry i am not so rich for outside countries. MVC is an architectural pattern which separates the representation and user interaction. Below is how each one of them handles the task. There are six broader events which occur in MVC application life cycle below diagrams summarize it. Any web application has two main execution steps first understanding the request and depending on the type of the request sending out 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. Below is the detail 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 route table with routes collection. This filling of route table happens in the global. Creating Response object: - This phase has two steps executing the action and finally sending the response as a result to the view. The MVC architecture is suited for a web application than Windows.
For Window applications, MVP, i. MVC is an evolution of a three layered traditional architecture. Many components of the three layered architecture are part of MVC. So below is how the mapping goes:. For checkbox below is the HTML helper code.
This is defined by adding an entry in to the routes collection using the maproute function. Below is the underlined code which shows how the URL structure and mapping with controller and action is defined. The route mapping code is written in "RouteConfig. Yes, you can, you just need to make two entries with different key names and specify the same controller and action. This is a feature introduced in MVC 5. By using the "Route" attribute we can define the URL structure.
For example in the below code we have decorated the "GotoAbout" action with the route attribute. Most of the time developers code in the action methods. By using the 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. Partial view is a reusable view like a user control which can be embedded inside other view. 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. Once the partial view is created you can then call the partial view in the main view using the Html. RenderPartial method as shown in the below code snippet:. One of the easiest ways of doing validation in MVC is by using data annotations. Data annotations are nothing but attributes which can be applied on model properties. For example, in the below code snippet we have a simple Customer class with a property customercode.
This CustomerCode property is tagged with a Required data annotation attribute. In other words if this model is not provided customer code, it will not accept it. In order to display the validation error message we need to use the ValidateMessageFor method which belongs to the Html helper class.
Later in the controller we can check if the model is proper or not by using the ModelState. IsValid property and accordingly we can take actions. Yes, we can; use the ValidationSummary method from the Html helper class. In case you want to use a regular expression, you can use the RegularExpression attribute. If you want to check whether the numbers are in range, you can use the Range attribute.
Sometimes you would like to compare the value of one field with another field, we can use the Compare attribute. In case you want to get a particular error message , you can use the Errors collection. 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.
In case you want add errors in the controller you can use the AddModelError function. Till MVC we had only one view type, i.
Razor was introduced in MVC 3. Razor is clean, lightweight, and syntaxes are easy as compared to ASPX. For example, in ASPX to display simple time, we need to write:. For Windows authentication you need to modify the web. Then in the controller or on the action, you can use the Authorize attribute which specifies which users have access to these controllers and actions.
Below is the code snippet for that. Now only the users specified in the controller and action can access it. Forms authentication is implemented the same way as in ASP. The first step is to set the authentication mode equal to Forms. The loginUrl points to a controller here rather than a page. We also need to create a controller where we will check if the user is proper or not.
If the user is proper we will set the cookie value. In the below code you can see we have a simple form which is created by using the Ajax. BeginForm syntax. This form calls a controller action called getCustomer. So now the submit action click will be an asynchronous AJAX call.
ActionLink function as shown in the below code. 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. Below is the controller code. You can see how the GetDate function has a pause of 10 seconds.
All this logic is put into a function called GetData and you can make a call to the GetData function on a button or a hyperlink click event as you want. Below is a detailed list for your interest:. There 12 kinds of results in MVC, at the top is the ActionResult class which is a base class that can have 11 subtypes as listed below:. To create an inline action attribute we need to implement the IActionFilter interface.
We can implement pre-processing logic or cancellation logic in these methods. The problem with the inline action attribute is that it cannot be reused across controllers. So we can convert the inline action filter to an action filter attribute. To create an action filter attribute we need to inherit from ActionFilterAttribute and implement the IActionFilter interface as shown in the below code. Later we can decorate the controllers on which we want the action attribute to execute.
You can see in the below code I have decorated the Default1Controller with the MyActionAttribute class which was created in the previous code. Yes, we can create our own custom view engine in MVC.
To create our own custom view engine we need to follow three steps:. Step 1 : We need to create a class which implements the IView interface. In this class we should write the logic of how the view will be rendered in the render function. Below is a simple code snippet for that. Step 2 : We need to create a class which inherits from VirtualPathProviderViewEngine and in this class we need to provide the folder path and the extension of the view name.
Below is how the code looks like. Step 3 : We need to register the view in the custom view collection. The best place to register the custom view engine in the ViewEngines collection is the global. HTTP is the most used protocol. For the past many years, browser was the most preferred client by which we consumed data exposed over HTTP. But as years passed by, client variety started spreading out.
For satisfying the broad range of clients REST was the proposed approach.
C# Net Interview Questions And Answers Pdf
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Download File PDF Shivprasad Koirala 6th Edition Interview Questions with Sample Programs and practical ideas for C applications, this book is ideal for.
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Last post Nov 16, AM by rahul. Gopinath, gopinathnet gmail. I hope this can help for facing the interviews. Interview Question. NET 2.
Explain MVC application life cycle? In this article we will explain MVC application life cycle. For more articles and videos visit us on www. Read More. In this article we will explain.
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This article does not teach Asp. If you want to learn MVC 5 in a short time i. I have tried my level best to cover what questions i have faced in MVC interviews. But i feel the below questions are not enough and in real MVC interview's much more is asked. If you can share your question in the comment below. I would love to incorporate them in this article so that others are benefited. If your question is great and i like it i will ship you a free copy of my.
Net ASP. Net Questions and Answers Asp. Net Interview Questions Pdf Asp. Net Programming. Saikat banerjee. Page 1. Dynamic Programming.
NET framework is a software framework developed by Microsoft that primarily runs on windows, which can be used for building, deploying and running applications that partnertula. So, this article on Top NET interview questions will help you to brush up your knowledge before the interview.
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