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You ll now create the SQL Server database for your project, although you won t get to effectively use it until the next chapter. This database will store all the information in your site, such as data about products, customers, and so on. As mentioned earlier, it is possible to use Visual Web Developer to connect to your SQL Server 2008 instance. However, we prefer to use SQL Server Management Studio Express, because it s more powerful and better suited for usual database operations.





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[WebMethod(MessageName="HelloWorldAgain")] public string HelloWorld(string name) { return "Hello " + name; } The code modifies the WebMethod attribute of the second method and sets the MessageName property to an alternate name (or alias) for that version of the web method. In the XML markup that is generated internally during the request and response, this alternate name is used instead of the actual method name. However, as you will see later, the proxy is intelligent enough to provide overloaded versions of web methods in the client application. Figure 9-7 shows what the overloaded web methods look like in the help page.

1. Start SQL Server Management Studio Express. When executed, it will first ask for your credentials, as shown in Figure 3-10.





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Figure 3-10. Starting SQL Server Management Studio 2. By default, when installed, SQL Server 2008 will only accept connections through Windows Authentication, meaning that your Windows user account will be used for logging in. Because you re the user that installed SQL Server 2008, you will already have full privileges to the instance. Click Connect to connect to your SQL Server 2008 instance. After connecting to SQL Server, you ll be shown an interface that offers you numerous ways to manage your server and databases see Figure 3-11.

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You can decide whether the web method should start emitting the response back to the client immediately or buffer it until the entire serialization is over by using a property called BufferResponse. Setting this property to true buffers the response until serialization is complete and then sends all the serialized data at once to the client. Setting this property to false will return the data to the client as it is serialized. The web service s performance will be better with BufferResponse set to true because buffering the response reduces the frequent serialization calls. If your web method is returning only a small amount of data in the response stream, buffering the response will improve the performance. On the other hand, if your web method is returning a large amount of data, you may consider turning buffering off so as to avoid large memory consumption on the server. Listing 9-7 illustrates the use of this property.

3. 4. 5. 6. 7.

3. In most real-world scenarios, you ll connect to the database using a SQL Server user ID and password, rather than Windows Authentication, and we ll use this method in our examples as well. To enable SQL Server authentication, right-click the root node in the Object Explorer window and select Properties. In the dialog that appears, select the Security page, and select SQL Server and Windows Authentication mode, as shown in Figure 3-12.

Figure 3-12. Modifying the security options of your SQL Server 4. Click OK to save the change. You ll be notified that you may need to restart SQL Server in order for the change to take effect. You can do so now by right-clicking the server node (the root node) in the Object Explorer pane and selecting Restart. (This action will be allowed if you started SQL Server Management Studio as Administrator.) Alternatively, you can choose Control Panel Administrative Tools Services, and restart the SQL Server service from there. 5. Let s create the BalloonShop database now. Right-click the Databases node and choose New Database.... Type BalloonShop for the name of the new database, and leave all the options as their defaults, as shown in Figure 3-13.

Listing 9-7. Using the BufferResponse Property [WebMethod(BufferResponse = true)] public string BufferMyResponse() { return "Hello World"; }

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