This chapter introduced ASP.NET Web servicesa technology that enables users to request and receive data via the Internet and promotes software reusability in distributed systems. You learned that a Web service is a class that allows client machines to call the Web service's methods remotely via common data formats and protocols, such as XML, HTTP and SOAP. We discussed several benefits of this kind of distributed computinge.g., clients can access certain data on remote machines, and clients lacking the processing power necessary to perform specific computations can leverage remote machines' resources.

We explained how Visual C# 2005, Visual Web Developer 2005 and the .NET Framework facilitate the creation and consumption of Web services. You learned how to define Web services and Web methods, as well as how to consume them from both Windows applications and ASP.NET Web applications. After explaining the mechanics of Web services through our HugeInteger example, we demonstrated more sophisticated Web services that use session tracking and user-defined types.

In the next chapter, we discuss the low-level details of computer networking. We show how to implement servers and clients that communicate with one another, how to send and receive data via sockets (which make such transmissions as simple as writing to and reading from files, respectively), and how to create a multithreaded server for playing a networked version of the popular game Tic-Tac-Toe.



    Introduction to Computers, the Internet and Visual C#

    Introduction to the Visual C# 2005 Express Edition IDE

    Introduction to C# Applications

    Introduction to Classes and Objects

    Control Statements: Part 1

    Control Statements: Part 2

    Methods: A Deeper Look


    Classes and Objects: A Deeper Look

    Object-Oriented Programming: Inheritance

    Polymorphism, Interfaces & Operator Overloading

    Exception Handling

    Graphical User Interface Concepts: Part 1

    Graphical User Interface Concepts: Part 2


    Strings, Characters and Regular Expressions

    Graphics and Multimedia

    Files and Streams

    Extensible Markup Language (XML)

    Database, SQL and ADO.NET

    ASP.NET 2.0, Web Forms and Web Controls

    Web Services

    Networking: Streams-Based Sockets and Datagrams

    Searching and Sorting

    Data Structures



    Appendix A. Operator Precedence Chart

    Appendix B. Number Systems

    Appendix C. Using the Visual Studio 2005 Debugger

    Appendix D. ASCII Character Set

    Appendix E. Unicode®

    Appendix F. Introduction to XHTML: Part 1

    Appendix G. Introduction to XHTML: Part 2

    Appendix H. HTML/XHTML Special Characters

    Appendix I. HTML/XHTML Colors

    Appendix J. ATM Case Study Code

    Appendix K. UML 2: Additional Diagram Types

    Appendix L. Simple Types


    Visual C# How to Program
    Visual C# 2005 How to Program (2nd Edition)
    ISBN: 0131525239
    EAN: 2147483647
    Year: 2004
    Pages: 600

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