.NET Core 3.0 Preview Now Available!

.NET Core 3.0 Preview Now Available!

.NET Core 3.0 Preview 3 is out and there are many interesting updates to the framework and to ASP.NET Core.

Microsoft has released previews for the updates to its two most popular frameworks. An expert developer goes over all the changes you need to know.

Here’s a list of the most important updates. Downloads are available here.

Updates to .NET Core 3.0:

  • More support for Indexes and Ranges in C#
  • .NET Standard 2.1 support. To target the .NET Standard edit project file and specify netstandard2.1 as the target framework. .NET Standard 2.1 is not supported by the full .NET Framework.
  • F# 4.6 and dotnet fsi command. Previews of F# 4.6 and the dotnet fsi command are available. FSI stands for F# interactive.
  • AssemblyDependencyResolver and resolver events. Loading dependent assemblies from a given path (wasn’t possible before), resolver events help us work better with dynamically loaded native dependencies.
  • High DPI for Windows Forms Applications. Finally, Microsoft pushes Windows Forms applications to the current era. 96DPI is not constant anymore and it’s possible to build high-DP Windows Forms apps.

Updates to ASP.NET Core 3.0:

  • Improvements to Razor Components. There’s a single project template now, Razor components support endpoint routing and prerendering, and Razor components can be hosted in Razor class libraries. There’s also improved event handling and support for forms and validation.
  • Runtime compilation. It was disabled in ASP.NET Core 3.0 templates but it can be turned on now by adding a special NuGet package to the project.
  • Worker Service template. Need to write a Windows service or Linux daemon? Now we have a worker service template for this.
  • gRPC template. Together with Google, Microsoft is building a gRPC that is popular with the Remote Procedure Call (RPC) framework. This release of ASP.NET Core introduces the first bits of gRPC support on ASP.NET Core.
  • The Angular template is using Angular 7. The Angular SPA template uses now Angular 7 and before the first stable release it will be replaced with Angular 8.
  • Authentication for SPAs. Microsoft added out-of-the-box authentication support for single-page applications with this preview.
  • SignalR integration with endpoint routing. Small change - SingalR routes are now defined with endpoint routing.
  • SignalR Java client support for long polling. The SignalR Java client can be used now even in environments where WebSocket is not supported or allowed.

There’s not much news about Entity Framework Core 3.0 but we can expect updates with next preview version of .NET Core.


Learn More

Introduction to ASP.NET Core 2.2

Building Web APIs with ASP.NET Core

Develop a basic website with .NET CORE 3.0 and pure JavaScript

How to build RESTful APIs with ASP.NET Core

Build a Video Chat App with ASP.NET Core, Angular

Build a Basic Website with ASP.NET MVC and Angular

Building Web App using ASP.NET Web API Angular 7 and SQL Server

The Complete ASP.NET MVC 5 Course

Build a Real-world App with ASP.NET Core and Angular 2 (4+)

Build an app with ASPNET Core and Angular from scratch

Originally published by Gunnar Peipman at https://dzone.com

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What are some web stacks using .NET for the back end development?

What are some web stacks using .NET for the back end development?

Microsoft has helped web developers develop web applications for a long time. There have been many updates in its framework and even after the release of so many other web development frameworks it has sustained itself in the market. The framework...

Microsoft has helped web developers develop web applications for a long time. There have been many updates in its framework and even after the release of so many other web development frameworks it has sustained itself in the market. The framework was released in the year 2002 and since then there have been many web applications that took its help for creating both front end and back end. With this, the developers can develop not just web-based applications but also form-based applications. Asp .net development services can be used by the developers to develop dynamic web applications that are in trend.

What is Back-End Development?

The back end of a web application is also known as the server-side. Basically, the back end of a web application consists of a server, a database and an application(Web server, Programming Language, Web Framework). All the work like programming the logic for the business, server-side hosting and deployment, working with the database, etc. are the things that are performed by the web developers under the back end development. The enterprises can hire a dot net programmer for the purpose of developing a good web application whose back end will also be strong and secure. A web development company uses many stacks for the purpose of developing a web application whose back end and front end are developed perfectly. The best web development services also use the stacks that the use of Asp .net development services for the purpose of back end development.

Using the .Net web stack:

The developers can use the .Net web stack for the purpose of back end web development too, generally .Net is used in the development of the middle tier of a web application but the web stack can also be used to develop the server-side or the back end. For years .Net has been a framework that has been trusted by many developers because of its rich features, and because its framework is battle-tested. Enterprises can hire a dot net programmer to develop a dynamic and interactive web application. One of the best web stacks in the world, Microsoft’s technology stack uses .Net for its web application development. The .Net stack is can be viewed as a subset of the overflow stack, it is a comprehensive technology stack that can fulfill the demands of the front-end, .Net and the database developers.

.Net stack can be combined with various open-source technologies to develop a wide variety of applications ranging from small scale server-side(Back-end) web apps to big enterprise-level and transaction processing system applications.

The .Net web stack consists of almost 60 frameworks, platforms, SDKs, SOA, IDE’s, Libraries, etc. It is spread over 13 different layers. The stack includes CLI languages like C#, F#, VB.NET, Fantom, etc.

Below are some of the key features of the .Net Web stack:

1. Interoperability

Interoperability means the quality of a system or a language or a framework to exchange and use the information. Interoperability between various platforms is a major advantage of using the .Net technology stack. It enables users to make use of a wide range of complementing features. The web development company that used the .Net tech stack will be benefitted very much because of this feature.

2. Dependence of Languages

With .Net tech stack, the web app developers get the freedom to use any language they prefer. Other stacks do not allow the developers to choose any language they choose, there are some specified languages that have been used by the developers while developing a web application with other stacks.

3. Portable

The stack is compatible with many other frameworks and platforms, which makes the portability of the application being developed very easy. This is one of the most important features of this stack.

4. Secure

Security is one of the most important aspects when any kind of application is developed, especially in the case of a web application, there are many hackers out there who can try to attack and gain control of the developed application. With the use of this stack, the developers can ensure the security of the code and the application that is being developed.

5. Speed

The projects developed through this stack can be completed faster and on time because of its high speed. The developers can ensure timely launches, and satisfaction of the stakeholders. The speed of the framework, the stack and the platform on which the application is being developed to play an important role in the development time and runtime.

There best web development services in the world want a web tech stack that can provide them with the best in class features and the features of the .Net stack look great. With so many benefits there should be no doubts on why .Net Stack should be used for the purpose of the development of web applications.

The Life-Cycle of an ASP.NET Application In Web Development

If you are a beginner in ASP.NET, You Should understand the life-cycle of an ASP.NET Application In web development.

Whenever a user tries to access a particular page or when a page is requested by the user from the browser, the request goes through a series of steps and numerous processes run under the hood in the background, in order to produce the output or send the response back to the client. 

The time period and the processes that run between the request and response of a page is called the "Page Life Cycle".

Request:- Start of the life cycle (sent by the user).

Response:- End of the life cycle (sent by the server).

The application life cycle has the following stages to put them into brief:-

  • User makes a request for accessing application resource, a page. Browser sends this request to the web server.
  • A unified pipeline receives the first request and the following events take place:
  • An object of the class ApplicationManager is created.
  • An object of the class HostingEnvironment is created to provide information regarding the resources.
  • Top level items in the application are compiled.
  • Response objects are created. The application objects such as HttpContext, HttpRequest and HttpResponse are created and initialized.
  • An instance of the HttpApplication object is created and assigned to the request.
  • The request is processed by the HttpApplication

The life-cycle of an ASP.NET page

Whenever someone requests a page, it gets loaded into the server memory, processed, and sent back to the browser. It then gets unloaded from the memory. During each of these steps, methods and events are available, and there is a chance that it could be overridden according to the needs of the application. At the same time, one can write their own code to override the default code.

The Page class engineers a hierarchical tree of all the controls on the page. Every single component on the page, except the directives, becomes a part of this control tree. You can see the control tree by adding trace= "true" to the page directive.

What are the events that occur in ASP.NET page life-cycle

During each stage of the page life cycle, the page raises some events, which could be coded. Talking about event handler, it is a function or subroutine, bound to the event, using declarative attributes such as Onclick or handle.

PreInit - This is the first event in the page life cycle. It checks the IsPostBack property and establishes whether the page is a postback. It helps in setting up the themes and master pages, creates dynamic controls, and gets and sets profile property values. This particular event can be handled by overloading the OnPreInit method or creating a Page_PreInit handler.

Init - Init event kickstarts the control property and the control tree gets built. The event can be handled by overloading the OnInit method or creating a Page_Init handler.

InitComplete - InitComplete event enables tracking of view state. Each and every controls turn on view-state tracking.

LoadViewState - LoadViewState event allows loading view state information straight into the controls.

LoadPostData - At the time of this phase, the contents of all the input fields are defined with the <form> tag are processed.

PreLoad - The PreLoad event unfolds right before the postback data is loaded in the controls. This event can easily be handled by overloading the OnPreLoad method or creating a Page_PreLoad handler.

Load - This event is raised for the page first and after that, recursively for all the child controls. The controls in the control tree are created. One can handle this event by overloading the OnLoad method or creating a Page_Load handler.

Conclusion

ASP.NET has a long lasting future. Most of the web development today is done on ASP.NET pages. Today you can easily hire ASP.NET developers and start building your dream website today.