Some are cross-platform, and some target a specific OS or. NET implementation. NET is open source and under the. NET Foundation. NET Foundation is an independent organization to foster open development and collaboration around the. NET ecosystem. NET is open source, you can join the thousands of developers and companies already contributing to the. NET platform. Join the. NET community. The Visual Studio product family provides a great. The Visual Studio Marketplace has thousands of editor extensions from Microsoft and others.
If you prefer to use a different editor, there are. NET command-line tools and plug-ins for many popular editors. Quickly deploy mission-critical apps. Start free. Scale as you grow. Web Applications with ASP. Open, flexible tools you need to create and deploy modern web apps.
NET is an open source web framework for building great web apps and services. You can also create web APIs and mobile sites, use real-time technologies like Web Sockets, and more. Windows desktop applications. Windows Forms and WPF. Cross platform mobile. Visual Studio and Xamarin. Leverage Xamarin.
Forms to build native and performant cross-platform user interfaces across platforms and plug into the. NET ecosystem taking advantage of. Universal Windows Platform. One Windows platform, many devices. Free, fully-featured IDE for students, open-source and individual developers. It runs on top of the. NET framework with no support for. NET Core and is not actively developed anymore. Applications written in ASP.
NET Core should be used instead on top of. NET Core if possible, or. NET framework if necessary. On the surface, ASP. The project structure contains the same three core folders:. However, there is only limited built-in support for dependency injection with no implementation provided out-of-the-box.
To inject services with business logic into a controller, a third-party dependency injection library implementing the provided interfaces must be added to the project and properly configured. Although the default routing of requests to action methods in controllers follows the same convention as in ASP. NET Core projects, it is configured elsewhere and with slightly different code which you can find in the RegisterRoutes method of the RouteConfig class:. There is also no customizable request pipeline.
To hook into a request, several different approaches can be used, depending on what needs to be achieved:. From the three approaches above, only action filters are still available in ASP. The other two must be converted to middleware.
This can make it difficult to port an existing ASP. NET Core unless it is very simple. Usually it makes sense to keep maintaining it in ASP. In a typical web site or a web application following the MVC architecture as described in the previous section, each user interaction with the web page will result in an HTTP request to the server to which the web server will respond with a new web page for the browser to render.
Figure 4: User interaction in an MVC web application. Any further interaction with that page will not directly result in a request to the web server.
Instead, it will be handled by the JavaScript code which will update the existing page accordingly. A new request to the web server will only be made when JavaScript code will require data that is not yet available in the browser. In response to that request, the web server will not send back a full HTML page. Instead, it will only send the data requested usually in JSON format. JavaScript code will then process the data received and update the existing page. Figure 5: User interaction in a single-page application.
Single-page application SPA pattern is most suitable for web applications with a high level of user interactivity because it can provide a better experience for the user. Since the final appearance of a page is generated inside the browser and not returned from the server, single-page applications are at a disadvantage when the content must be indexed by search engines.
There are solutions for that i. Even for a single-page application, the web server part can still take advantage of the MVC pattern.
A common term for such backend application is REST service. The recommended framework for implementing REST services in. NET Core preferably hosted in.
Visual Studio Code users can create a new project from the command line with the following command:. In web API applications, the controller classes are still responsible for responding to incoming requests and can use the business logic implemented in models and services. Instead, action methods can return view models directly, and they will be serialized to JSON format.
In the example we just saw, the method returns an array of values. For the same reasons as ASP. Currently, the most popular ones are Angular , React , and Vue.
Although there are a lot of differences between them, they consist of the same basic building blocks:. No matter the choice, you will need to have a recent version of Node. Editorial Note: For Vue. The application entry point is a static index. After the application initializes, the app-root element will be replaced with the root AppComponent.
An Angular application is composed of many components. Each one declares the HTML element name that can be used in a template to insert into. This code will call a REST service to retrieve some data and store it in a local property so that it can be used from its template:. If we make a rough comparison to ASP. They just use an alternative syntax to Razor in MVC views. The component source code approximately corresponds to MVC controllers. You can decide for yourself how you want to build and host each one.
To simplify this, there are ASP. NET Core Vue. NET Core when they are still actively developed and would greatly benefit from. NET Core exclusive features e. NET Core versions. Although the process of porting will likely improve until the final release, it will still probably require a non-trivial amount of work. The framework choice for desktop applications mostly depends on the devices which you want to target.
For applications targeting Windows desktop only, WPF is usually the best choice. Once the final release of. But until then, the. NET framework is your only option. This will restrict which Win32 APIs are available to you, which is the reason why WPF is preferred for desktop-only applications in most cases. The only desktop framework not really recommended for writing new applications is Windows Forms.
Despite that, it is still fully supported and will even be available in. This article was technically reviewed by Daniel Jimenez Garcia. This article has been editorially reviewed by Suprotim Agarwal. C and. Organized around concepts, this Book aims to provide a concise, yet solid foundation in C and. NET, covering C 6. NET Core, with chapters on the latest. NET Standard and C 8. Use these concepts to deepen your existing knowledge of C and.
NET, to have a solid grasp of the latest in C and. NET OR to crack your next. NET Interview. Developing Desktop applications in. NET Core. Views: NET developers for creating desktop apps. This article provides an overview of them, compares their features and gives recommendations on what to choose depending on the application requirements. What is. NET 5? Overview, Features, Performance, Download.
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