Download tutorial : Introduction to ASP.NET / PDF

Download tutorial : Introduction to ASP.NET / PDF

What is an ASP File?

·        An ASP file is just the same as an HTML file

·        An ASP file can contain text, HTML, XML, and scripts

·        Scripts in an ASP file are executed on the server

·        An ASP file has the file extension ".asp"

What is ASP .NET?

·        ASP.NET is the latest version of ASP.

·        ASP .NET is the next generation ASP, but it's not an upgraded version of ASP.

·        ASP .NET is an entirely new paradigm for server-side ASP scripting.

·        ASP .NET is a part of the new .NET (dotnet) Framework.

·        An ASP.NET file has the file extension ".aspx"

.NET Framework

·        The .NET Framework is the infrastructure for the Microsoft .NET Platform. 

·        The .NET Framework is a common environment for building, deploying, and running Web applications and Web Services.

·        The .NET Framework contains a common language runtime and common class libraries - like ADO .NET, ASP .NET and Windows Forms - to provide advanced standard services that can be integrated into a variety of computer systems.

·        The .NET Framework provides a feature-rich application environment, simplified development and easy integration between a number of different development languages.

·        The .NET Framework is language neutral. Currently it supports C++, C#, Visual Basic, and JScript (The Microsoft version of JavaScript).

New in ASP .NET

• Better Language Support
• Programmable Controls
• Event Driven Programming
• XML Based Components
• User Authentication, with Accounts and Roles
• Higher Scalability
• Increased Performance - Compiled Code
• Easier Configuration and Deployment

§  Not Fully ASP Compatible

Language Support

§  ASP .NET uses the new ADO .NET.

§  ASP .NET supports full Visual Basic, not VBScript like ASP.

§  ASP .NET supports C# (C sharp) and C++.

§  ASP .NET supports JScript as before

Difference Between HTML, ASP, and ASP.NET

A static ASP or ASP.NET page is no different from an HTML – only difference is the way the files are saved: .htm, .asp, or .aspx extensions.

The codes below could be saved as an HTML. ASP, or  ASP.NET page, giving the same result.  View this page as an HTML, ASP,  or an ASP.NET page.

For dynamic effect, we need to program the Web pages behind the scene – that’s where the ASP and ASP.NET come into picture. For example, one can create a Web page to work as a Form for data input; however without programming, the data do not go anywhere – not saved, nor printed, or anything. 
New ASP.NET Resources

The two main types of Web resources created with ASP.NET applications are WebForms and Web Services. 

WebForms:

·        WebForms allow you to quickly develop and process forms on Web pages, and develop cross-browser Web applications. 

·        WebForms are Web pages that are identified with the file extension .aspx.

·        An example is a shopping cart.

Web Services:

·        Web Services are ASP.NET Web pages that contain publicly exposed code so that other applications can interact with them. 

·        Web Services are identified with the file extension .asmx. 

·        A company could, for example, expose the product ordering functionality of their Web site in order to allow other Web sites to connect to this function. For each sale that originated from other Web sites, the company could pay a referral fee.

 

WebForms

WebForms are ASP.NET pages within an ASP.NET application.  In previous versions of ASP, HTML is intermixed with ASP code within the same script. The ASP.NET WebForm is separated into two logical areas, the HTML template and a collection of code behind the WebForm.

The HTML template usually contains the design layout, content, and the controls. The HTML template is created using a combination of HTML controls and server controls.

HTML  Controls

         HTML Controls are typically found on a Web page that include buttons, textboxes, checkboxes, and dropdown lists. These controls are understood by the browsers. Users typically use these controls to send information from a browser to a Web server using another file or program.

For example: Yes

Server Controls

            Server controls are tags understood by the Web server. There are several types of server controls: HTML Server Controls, ASP.NET Form Controls, Data Validation controls, User Controls, Mobile controls, and Literal controls. Appendix A contains some sets of server controls.

HTML  Server Controls:

·        HTML Server controls are similar to the HTML controls, except they are processed by the server. Using HTML Server controls, you only need to write runat = "server" to the HTML control to transform it into an HTML Server control.

·        By transforming HTML controls to HTML Server controls, you can create server-side programs that can interact with the control before it is rendered as a plain HTML control and sent to the browser. Below is a sample of an HTML Server control.

·        For example: .........

Download tutorial : Introduction to ASP.NET / PDF