Introduction to ASP.NET - New Features in ASP.NET
(Page 9 of 10 )
We’ll close our introductory look at the .NET platform with a list of new features that are unique to ASP.NET and the chapter in which each will be discussed.
Web Forms
A new feature that, in combination with an editor such as Visual Studio .NET, provides the ASP.NET developer the same drag and drop development convenience enjoyed by Visual Basic developers for years. Web Forms improve the speed of development by encapsulating frequently used features into server controls, which are declared using a tag-based syntax similar to HTML and XML. We’ll discuss Web Forms in Chapters 3 and 12.
Web services
Web services allow developers to expose the functionality of their applications via HTTP and XML so that any client who understands these protocols can call them. Web services can make the task of application integration easier, particularly in situations in which application-to-application integration is made difficult by firewalls and/or differing platforms. We’ll discuss web services in Chapter 4.
Server controls
Server controls are declared using an HTML-like syntax, making them easier to work with for page UI designers. They are executed on the server, returning HTML to the browser. Server controls may be manipulated on the server programmatically and provide power and flexibility for applications that must support a variety of browsers. We’ll discuss using server controls in Chapter 5 and custom server control development in Chapter 6.
Validation
One group of server controls is designed to simplify the task of validating user input. It includes controls to validate required fields, to compare one field to another or to a specific value for validation, and to validate user input using regular expressions, which allow you to specify a format that user input must follow to be valid. Validation controls will be discussed in Chapter 5.
Improved security
ASP.NET offers tighter integration with Windows-based authentication, as well as two new authentication modes: forms-based authentication (which allows users to enter authentication credentials in a standard HTML form, with the credentials validated against your choice of backend credential store) and Passport authentication (which makes use of Microsoft’s Passport authentication service). We’ll discuss these improvements and new techniques in Chapter 9.
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