630 Project 5 CREATING A WEB PORTAL FOR A BOOKSTORE
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The Web server that you specify as the development server must have the .NET Framework and IIS (Internet Information Server) 5.0 or later installed on it. In case you have IIS 5.0 installed on your local computer, you can specify the path in the Location text box of the local computer.
A Web service with the name SampleWebService is created. Figure 28-4 shows the design view for SampleWebService.
FIGURE 28-4 The design view for SampleWebService
SampleWebService contains the files and references required for the Web service. The description of these files is given in Table 28-1.
EXPLORING ASP.NET WEB SERVICES |
Chapter 28 |
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Table 28-1 Files in a Web Service |
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Files |
Description |
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AssemblyInfo.cs |
This file contains the metadata of the assembly for the |
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project. |
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Service1.asmx.cs |
This file contains the code for the class declared in the |
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Web service. |
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Service1.asmx |
This file is the entry point of the Web service and co n- |
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tains information about the processing directive of the |
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Web service.The processing directive identifies the class |
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in which the code for the Web service is implemented. |
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Global.asax.cs |
This file contains the code for handling the events gen- |
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erated in the application. |
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Global.asax |
This file contains information about handling the |
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events generated in the application. |
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Web.config |
This file contains information about the configuration |
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settings of ASP.NET resources. |
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SampleWebService.csproj.webinfo |
This file contains information about the location of the |
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project on the de velopment server. |
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SampleWebService.vsdisco |
This file contains the description of the Web service |
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that is required by the client application to access the |
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Web service.The file contains the description of the |
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methods and interfaces used in the Web service to |
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enable programmers to communicate with these |
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resources. |
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SampleWebService.sln |
This solution file contains the metadata of the solution. |
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If your local ser ver is your development server, the |
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SampleWebService.sln file exists on the local server. |
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SampleWebService.csproj |
This project file contains information about the list of |
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files related to a project. |
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When you create a Web service, the component designer view for Service1.asmx is displayed.The Service1.asmx.cs file contains the code for the Web service. You will learn about the default code generated by Visual Studio .NET later in this chapter.
632 Project 5 CREATING A WEB PORTAL FOR A BOOKSTORE
In the .NET Framework, you can create complex Web services that an application can use to access data over the Internet. You will learn about creating complex Web services during the project. However, in this chapter, you will create a simple Web service that will help you to have a better understanding of how to create a Web service.
Creating a Simple Web Service
in the .NET Framework
In this section, I will show how to create a simple Web service in the .NET Framework. Name this Web service SampleWebService. You can create a Web service by using the ASP.NET Web Service template in the New Project dialog box. In the Location: text box of the New Project dialog box, specify the name of the Web service as SampleWebService.
When you click on the OK button in the New Project dialog box, Visual Studio
.NET creates a virtual directory with the name of your Web service. In case a Web service with the specified name already exists, Visual Studio .NET prompts you to specify another name for your Web service. Figure 28-5 shows the window displayed when Visual Studio .NET creates a new virtual directory.
FIGURE 28-5 The window displayed while creating a new virtual directory
As you can see, the Web service does not have any user interface or a form. The default file displayed when Visual Studio .NET creates a Web service is Service1.asmx. I have already explained the default files generated by Visual Studio
.NET in Table 28-1.