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Figure 17-6. The Add Web Reference dialog box after you have selected a Web service Now you need to make the changes to your main .cpp file, as shown in Listing 17-10. Listing 17-10. A Console Web Services Client Application #include "FindZipCode.h" using namespace System; void main() { FindZipCode::FindZipCodeClass ^fzc = gcnew FindZipCode::FindZipCodeClass(); try { Console::WriteLine(fzc->GetZip("Louisville", "KY").ToString()); Console::WriteLine(fzc->GetZip("Irvine", "CA").ToString()); Console::WriteLine(fzc->GetZip("xx", "cc").ToString()); } catch (Exception ^e) { Console::WriteLine(e->Message); } }

Believe it or not, that s all the coding you have to do. Notice that you instantiate a Web service class in the same way as you do any other class: FindZipCode::FindZipCodeClass ^fzc = gcnew FindZipCode::FindZipCodeClass(); Also notice that you access methods in the same way: fzc->GetZip("Louisville", "KY").ToString(); From the client programming perspective, there is no difference between using a local class and using a Web service class. If I were to give this code to a developer, she would have no way of knowing it uses Web services unless she opened the FindZipCode.h include file. Go ahead and run the client. Figure 17-7 shows the result of the client application ZipCodeConsoleClient.exe. As is expected, two zip codes are printed to the console, and then the exception is captured and printed to the console (just as I predicted at the beginning of this example).

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Server and launch the New Team Project Wizard. There is no command-line tool for creating a new team project.

Double-click the MyWebViewController.xib file to open it again in Interface Builder. In the View window, control-click (or right-click) the UIBarButtonItem, and a dark-gray contextual menu will appear with a list of items. Click the selector s empty dot (listed under Sent Actions), and while holding down the mouse button, drag the cursor over to the File s Owner icon in the main window. You ll see a blue line connecting the button to your cursor s location (see Figure 2 7). After you release the mouse button, a dark-gray menu will appear above File s Owner. Select urlbuttonTapped from that hovering menu to bind the UIBarButtonItem to the urlbuttonTapped method. This wires the button s action, so that if a user taps that button, the urlbuttonTapped method will be called.

Debugging a Web service on its own is no different than debugging any other .NET application. Simply compile within the debug solution configuration and then set breakpoints where you want the execution to stop. There is one scenario that confused me when I tried to debug my Web service: when you have the class library project selected as the startup project instead of the Web Service project. If you do this, starting the debugger causes the dialog box shown in Figure 17-8 to open.

Follow these steps to connect to the Team Foundation Server: 1. Select View Team Explorer from the main menu bar, if the Team Explorer is not already visible. 2. Select Tools Connect to Team Foundation Server from the main menu bar. 3. Click the Servers button, and then click the Add button. 4. Enter the name of the server where the Team Foundation application tier is located, as shown in Figure 2-1, and then click OK.

Figure 17-8. The debugging Web service error The dialog box does sort of show what is wrong. Anyway, if you get this, the solution to the problem is easy: simply click OK and change your startup project to Web Service. Debugging a Web service when it is being consumed by a client is not as simple and could require a little more effort, depending on how your environment is set up.

The first scenario is when the client and Web service are in two different solutions. If this is the case, simply start up the Web service solution in debug mode, and when the client calls the Web service the breakpoint will be triggered. The second scenario is when the client and Web service are in the same solution but in different projects. In this case, I use the following two procedures (there are probably others that I don t know).

5. Select the Server you just added, and then click OK. 6. Click OK in the Connect to Team Foundation Server dialog box. Any team projects that have previously been created on the Team Foundation Server are listed here. The Team Explorer will now list your server, along with a My Favorites node (discussed in the Working with the Team Explorer section later in this chapter).

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