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Visual Basic 2005 for Programmers: Deitel Developer Series, Second Edition by Harvey M. Deitel - Deitel & Associates, Inc., Paul J. Deitel - Deitel & Associates, Inc.

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22.7. User-Defined Types in Web Services

The Web methods we have demonstrated so far all received and returned primitive-type values. It is also possible to process user-defined types—known as custom types—in a Web service. These types can be passed to or returned from Web methods. Web service clients also can use these user-defined types, because the proxy class created for the client contains the type definitions.

This section presents an EquationGenerator Web service that generates random arithmetic equations of type Equation. The client is a math-tutoring application that inputs information about the mathematical question that the user wishes to attempt (addition, subtraction or multiplication) and the skill level of the user (1 specifies ...

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