ASP.NET

What is the use of bundling in MVC?

Bundling and minification techniques were introduced in MVC 4 to improve request load time. Bundling allows us to load the bunch of static files from the server in a single HTTP request. In the above figure, the browser sends two separate requests to load two different JavaScript file MyJavaScriptFile-1.

How do you use bundling and minification in MVC 5?

Bundling and minification can be enabled or disabled in two ways: either setting the value of the debug attribute in the compilation Element in the Web. config file or setting the enableOptimizations property on the BundleTable class. In the following example, debug is set to true in web.

How do I bundle a script in MVC?

The ScriptBundle class represents a bundle that does JavaScript minification and bundling. You can create style or script bundles in BundleConfig class under App_Start folder in an ASP.NET MVC project.

How do I bundle CSS files in MVC?

The following example shows how to combine multiple CSS files into a bundle. public class BundleConfig { public static void RegisterBundles(BundleCollection bundles) { bundles. Add(new StyleBundle(“~/bundles/css“). Include( “~/Content/bootstrap.

What is bundling and Minifications in MVC?

Both bundling and minification are the two separate techniques to reduce the load time. The bundling reduces the number of requests to the Server, while the minification reduces the size of the requested assets.

How does bundling increase performance in MVC?

To improve the performance of the application, ASP.NET MVC provides inbuilt feature to bundle multiple files into a single, file which in turn improves the page load performance because of fewer HTTP requests.

What are the filters in MVC?

Filter TypeInterfaceAuthenticationIAuthenticationFilterAuthorizationIAuthorizationFilterActionIActionFilterResultIResultFilter

What is FilterConfig Cs in ASP NET MVC?

FilterConfig.cs- This is used to create and register global MVC filter error filter. RouteConfig.cs- This is used to register various route patterns for your Asp.Net MVC application.

What is global ASAX in MVC?

The Global. asax file is a special file that contains event handlers for ASP.NET application lifecycle events. The route table is created during the Application Start event. … asax file for an ASP.NET MVC application.

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What is ActionResult MVC?

What is an ActionResult? An ActionResult is a return type of a controller method, also called an action method, and serves as the base class for *Result classes. Action methods return models to views, file streams, redirect to other controllers, or whatever is necessary for the task at hand.

How can we do validations in MVC?

1. Required.
2. Range,
3. RegularExpression ,
4. Compare.
5. StringLength.
6. Data type.

Can we use view state in MVC?

ASP.NET MVC does not use ViewState in the traditional sense (that of storing the values of controls in the web page). Rather, the values of the controls are posted to a controller method.

What is scaffolding in MVC?

Scaffolding is a technique used by many MVC frameworks like ASP.NET MVC, Ruby on Rails, Cake PHP and Node. JS etc., to generate code for basic CRUD (create, read, update, and delete) operations against your database effectively. Further you can edit or customize this auto generated code according to your need.

What is caching in MVC?

Caching is used to improve the performance in ASP.NET MVC. Caching is a technique which stores something in memory that is being used frequently to provide better performance. … OutputCheching will store the output of a Controller in memory and if any other request comes for the same, it will return it from cache result.

What is Viewstart page in MVC?

_Viewstart Page Introduced in ASP.NET MVC 3. The _ViewStart. cshtml page is a special view page containing the statement declaration to include the Layout page. Instead of declaring the Layout page in every view page, we can use the _ViewStart page. When a View Page Start is running, the “_ViewStart.

How does bundling increase performance?

Bundling improves the load time by reducing the number of requests to the Server and reducing the size of the requested JavaScript and CSS files by combining or bundling the multiple files into a single file.

What is the use of TempData in MVC?

TempData is used to transfer data from view to controller, controller to view, or from one action method to another action method of the same or a different controller. TempData stores the data temporarily and automatically removes it after retrieving a value. TempData is a property in the ControllerBase class.

What is exception filter in MVC?

Exception filter in MVC provides an ability to handle the exceptions for all the controller methods at a single location. This is by creating a class, which inherits from the FilterAttribute and IExceptionFilter interface. … OnException is executed whenever any exception occurs in the controller action method.

What is Outputcache MVC?

The output cache enables you to cache the content returned by a controller action. … Output caching basically allows you to store the output of a particular controller in the memory. Hence, any future request coming for the same action in that controller will be returned from the cached result.

Which filter will execute last in MVC?

Exception Filters − Exception filters are the last type of filter to run. You can use an exception filter to handle errors raised by either your controller actions or controller action results.

How many filters are there in MVC?

The ASP.NET MVC framework supports four different types of filters: Authorization filters – Implements the IAuthorizationFilter attribute. Action filters – Implements the IActionFilter attribute. Result filters – Implements the IResultFilter attribute.

What is dependency injection in MVC?

Dependency Injection is an implementation of “Inversion of Control”. Inversion of Control (IoC) says that the objects do not create other objects on which they rely to do their work; instead, they get the objects that they need from an outside source (for example, an XML configuration file).

What is ViewBag and ViewData in MVC?

ViewData and ViewBag are used for the same purpose — to transfer data from controller to view. ViewData is nothing but a dictionary of objects and it is accessible by string as key. … ViewBag is very similar to ViewData. ViewBag is a dynamic property (dynamic keyword which is introduced in . net framework 4.0).

What is routing in ASP.NET MVC?

ASP.NET MVC routing is a pattern matching system that is responsible for mapping incoming browser requests to specified MVC controller actions. … When the request’s URL matches any of the registered route patterns in the route table then the routing engine forwards the request to the appropriate handler for that request.

Why routing is used in MVC?

Routing enables us to define a URL pattern that maps to the request handler. This request handler can be a file or class. In ASP.NET Webform application, request handler is . aspx file, and in MVC, it is the Controller class and Action method.

Is ViewData faster than ViewBag in MVC?

ViewBag will be slower than ViewData; but probably not enough to warrant concern.

What is ignore route in MVC?

Ignore(String, Object) Defines a URL pattern that should not be checked for matches against routes if a request URL meets the specified constraints.

What is ActionResult and ViewResult in MVC?

ActionResult is an abstract class, and it’s base class for ViewResult class. In MVC framework, it uses ActionResult class to reference the object your action method returns. And invokes ExecuteResult method on it. And ViewResult is an implementation for this abstract class.

Can ActionResult return JSON?

Some action result types are specific to a particular format, such as JsonResult and ContentResult. Actions can return results that are formatted in a particular format, regardless of client preferences. For example, returning JsonResult returns JSON-formatted data.

How many types of ActionResult are there in MVC?

As you can see, there are three categories of data types of ActionResult, Content Returning Results. Redirection Results. Status Results.