What is ASP NET? The Open Source Web Framework

The services that comprise distributed applications must communicate with one another to exchange data or information. You need a common data format for these communications, which what is asp.net narrows the options if your distributed applications span heterogeneous platforms. Earlier protocols such as DCOM, RPC, and IIOP were restricted to homogeneous environments.

what is asp.net

This article introduces SOAP and shows how you can implement a simple SOAP service in an ASP.NET Core application. To do so, we’ll take advantage of SoapCore, a SOAP middleware package for ASP.NET Core. For heterogeneous environments, we need a communications protocol that is supported across disparate platforms.

Web Pages Tutorial

To create an ASP.NET Core 7 Web API project in Visual Studio 2022, follow the steps outlined below. In this tutorial you will learn all you need to know about ASP. (3) (Association of Shareware Professionals, Muskegon, MI, -shareware.org) A trade organization for shareware founded in 1987. Author members submit products to ASP, which are approved, virus checked and distributed monthly via CD to member vendors. Find centralized, trusted content and collaborate around the technologies you use most. ASP.NET API is an API application model (Application Programming Interface).

  • It also provides other features like you can create beautiful sites that conform to the latest web standards.
  • In this chapter, you will see some basic fundamental of the .Net framework.
  • When IIS encounters an ASP page requested by the browser, it executes the embedded program.
  • Note that you can also create a SOAP service using the WCF Web Service Reference tool in your Visual Studio IDE.
  • ASP.NET is open source and a subset of the .NET Framework and successor of the classic ASP(Active Server Pages).
  • In November 2020, Microsoft simplified the name and removed “Core” from the name.

ASP.NET is still supported and updated, but moving forward the focus for Microsoft is to develop the new cross-platform version. Our “Run Example” tool displays the ASP.NET code and the HTML output simultaneously. Joydip Kanjilal is a Microsoft MVP in ASP.NET, as well as a speaker and author of several books and articles. He has more than 20 years of experience in IT including more than 16 years in Microsoft .NET and related technologies. Now, run the application and browse the following endpoint to see the generated WSDL (Web Service Description Language) of the SOAP service as shown in Figure 1. Create another .cs file, named AuthorServiceContract.cs, and enter the following code in there.


For example, to develop client interaction module, we can use MVC and for data control, we can use Web Forms. The selection of style is depends on the skills and experience of the programmer. When a browser requests an ASP file, the server passes the request to the ASP engine
which reads the ASP file and executes the server scripts in the file. Classic ASP pages have the file extension .asp and are normally written in VBScript.

At the end of this tutorial you will find a complete set of ASP.NET references with objects,
components, properties and methods. Web Pages is one of many programming models for creating ASP.NET web sites and
web applications. Note that you can also create a SOAP service using the WCF Web Service Reference tool in your Visual Studio IDE. These are also based on the .NET Framework and share core functionalities of .NET and ASP.NET. Because ASP scripts are executed on the server, you
can not view ASP code in a browser, you will only see the output from ASP which
is plain HTML. At W3Schools every example displays the hidden ASP code.


Known as “cloud computing” and “software as a service” (SaaS), customers rent the use of the application and access it over the Internet or via a private line connection. Also called a “commercial service provider.” The Web browser, acting as a universal client interface, has fueled this “on-demand software” market. See cloud computing, SaaS, Web application and service bureau. ASP.Net is a development language used for constructing web-based applications. ASP.Net is designed to work with the standard HTTP protocol. The ASP.NET runtime transforms the .aspx page into an instance of a class, which inherits from the base class page of the .Net framework.

what is asp.net

ASP.NET is the web development model and AJAX is an extension of ASP.NET for developing and implementing AJAX functionality. ASP.NET AJAX contains the components that allow the developer to update data on a website without a complete reload of the page. It’s the fruition of many years of hard work by Umbraco HQ and the Umbraco community. With the release of Umbraco 9, in September 2021, the CMS has been updated to run ASP.NET Core.

ASP .NET Tutorial

It is used to develop application with powerful data access. It provides server side controls and events to create web application. ASP.NET applications are compiled codes, written using the extensible and reusable components or objects present in .Net framework. These codes can use the entire hierarchy of classes in .Net framework.

what is asp.net

It consists of a large number of controls such as text boxes, buttons, and labels for assembling, configuring, and manipulating code to create HTML pages. In this Web Pages tutorial you will learn how to combine HTML, CSS, JavaScript
and server code, using server code written in VB
or C# . The IAuthorService interface is marked with the [ServiceContract] attribute, which defines a service contract in the above example.

ASP.NET Validation

When IIS encounters an ASP page requested by the browser, it executes the embedded program. ASPs are Microsoft’s alternative to CGI scripts and JavaServer Pages (JSPs), which allow Web pages to interact with databases and other programs. Third-party products add ASP capability to non-Microsoft Web servers. The Active Server Page technology is an ISAPI program and ASP documents use an .ASP extension.

what is asp.net

Both technologies enable computer code to be executed by an Internet server. It imparts data querying capabilities to .Net languages using a syntax which is similar to the tradition query language SQL. Metadata is the binary information describing the program, which is either stored in a portable executable file (PE) or in the memory. Assembly is a logical unit consisting of the assembly manifest, type metadata, IL code, and a set of resources like image files. The page state is the state of the client, i.e., the content of various input fields in the web form. The session state is the collective information obtained from various pages the user visited and worked with, i.e., the overall session state.


The MySoapMethod() method is annotated with the [OperationContract] attribute, which marks it as an operation that clients can invoke to interact with the service. ASP.NET, also known as ASP+, is an enhanced version of ASP for the .NET platform. It supports executable programs compiled from C#, C++ and other languages and is not backward compatible with regular ASP code. ASP.NET pages are always compiled rather than interpreted as are ASP pages. ASP.Net applications can also be written in a variety of .Net languages. In this chapter, you will see some basic fundamental of the .Net framework.

This is where SOAP (Simple Object Access Protocol) comes in. Mail us on h[email protected], to get more information about given services. When a browser requests a normal HTML file, the server just returns the file.

To clear the concept, let us take an example of a shopping cart. All client side user activities are forwarded to the server for stateful processing. The server processes the output of the client actions and triggers the reactions. ASP.NET web forms extend the event-driven model of interaction to the web applications. The browser submits a web form to the web server and the server returns a full markup page or HTML page in response.


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