In this tutorial, you write a Windows client application that calls the internet web service from Tutorial 2.  There are 7 steps...
 

1. In the same solution, create a Windows application project.
   Select the solution name and right-click.  In the popup menu, select Add...New Project...



In the Add New Project popup, select Visual C#, Windows Application, and a name of HelloClient.  You may also choose to modify the location:


You'll now get a new project in your solution, as follows:

 

2. Make the Windows application the default project in the solution.
   Right-click on the HelloClient project, and in the popup menu, select Set as Startup Project.
   


You should now see the HelloClient project highlighted:

 

3. Add a Web Reference to the client project.
   Select References and right-click; in the popup menu, select Add Web Reference:
   
   
   Enter the internet server's URL from Tutorial 2 in the URL textbox:
   
   
   Click on Go and you should see the HTML version of the service's WSDL page below the URL:
   
   
   Click the Add Reference button in the lower right of the Add Web Reference popup (above).  The project should now display a web reference something like the one shown below:
   
    
   
4. Add a button and textbox to Form1.
   Open Form1 in Design mode, open the Toolbox, and add a button and a textbox to the form:
   

 

5. Add three lines of code in Form1 to instantiate and call the web service.
   Open Form1's code view; it will look like this:
   

   Add three lines of code--line 16, 19 and 23 (you can copy and paste from here) to Form1:
   


 

6. Build the HelloClient() project.

 

7. Run it.
   If successful, you should be able to click the button and see the value returned by the web service as follows:
   

This is the end of Tutorial 3.  See other tutorials.

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