If you want to consume a web service, you must create a client application, and add a Web Reference. These procedures describe how to create an ASP.NET client application that consumes a third-party web service. The client application consumes the DeadOrAliveWS web service available from the XMethods Web site. This web service lets you query a simple database of celebrities and their respective birthdates and expiration dates.

1. Choose FileNewOther. The New Items dialog box appears.
2. Double-click the ASP.NET Web Application icon in the Delphi for .NET Projects item categories. The New ASP.NET Application dialog box appears.
3. In the Name field, enter a name for your project.
4. In the Location field, enter a path for your project.
   Tip: Most ASP.NET projects reside in the IIS directory Inetpub\wwwroot
   .
5. If necessary, click the View Server Options button to change your Web server settings.
   Tip: The default Server Options will usually be sufficient, so this step is optional.
6. Click OK. The Web Forms Designer appears.

1. If necessary, click Design view.
2. From the Web Controls category of the Tool Palette, place a Button component onto the Designer surface. The Button control appears on the Designer. Make sure the control is selected.
3. In Object Inspector, set the Text property to Dead or Alive?.
4. From the Web Controls category of the Tool Palette, place a TextBox component onto the Designer above the Button. This is where you type your query to the Web Service.
5. Place a Label component below the Button. This is where the results of the web service query are displayed.

1. Choose ProjectAdd Web Reference.
2. In the CodeGear UDDI Browser web dialog box, click the XMethods Full link in the list of available UDDI directories. A list of various web services published on the XMethods Web site appears.
3. Find and click the DeadOrAliveWS link.
   Tip: You can use Ctrl+F
   to search within the CodeGear UDDI Browser.
4. Click the link to the WSDL file:

http://www.abundanttech.com/webservices/deadoralive/deadoralive.wsdl

A WSDL document appears. This XML document describes the interface to the DeadOrAliveWS web service.

5. Click Add Reference to add the WSDL document to the client application. A Web References folder containing a com.abundanttech.www node is added to the Project directory in the Project Manager.

1. If necessary, click Design view.
2. Double-click the Dead or Alive? button to view the code-behind file.
3. For a Delphi for .NET Web Services application, implement the Click event in the Code Editor with the following code :

procedure TWebForm1.Button1_Click(sender: System.Object; e: System.EventArgs);
var
  result: DataSet;
  ws: DeadOrAlive;
  currentTable: DataTable;
  currentRow: DataRow;
  currentCol: DataColumn;
begin
  //This initializes the web service
  ws := DeadOrAlive.Create;

  //Send input to the web service
  result := ws.getDeadOrAlive(TextBox1.Text);

  //parse results and display them
  Label1.Text := '';
  for currentTable in result.Tables do
    begin
      Label1.Text := Label1.Text + '<p>' + #13#10;
      for currentRow in currentTable.Rows do
        begin
          for currentCol in currentTable.Columns do
            begin
              Label1.Text := Label1.Text + currentCol.ColumnName + ': ';
              Label1.Text := Label1.Text + (currentRow[currentCol]).ToString;
              Label1.Text := Label1.Text  + '<br>' + #13#10;
            end;
        end;
      Label1.Text := Label1.Text + '</p>';
    end;

end;

When you added the Web Reference to your application, RAD Studio used the WSDL to generate a proxy class representing the "Hello World" web service. The Click event uses methods from the proxy class to access the web service. For Delphi for .NET Web Services, you may need to add the unit name of the proxy class, abundanttech.deadoralive, to the uses clause of your Web Form unit to prevent errors in your Click event.

1. Choose ProjectBuild All Projects. Now your project is built and resides on your ASP.NET server.
2. Open a Web browser.
3. Type the URL of your Web Application's .aspx file and press Enter.
   Tip: If you are using Microsoft IIS, the URL is the path of the .aspx
   file after Inetpub\wwwroot. For example, if the path of your Web Application is c:\Inetpub\wwwroot\WebApplication1 and your .aspx file is named "WebForm1.aspx", the URL would be http://localhost/WebApplication1/WebForm1.aspx.
4. If necessary, enter your user name and password for your ASP.NET server. The web page for your web application appears.
5. Enter the name of a celebrity (for example, Isaac Asimov) in the text box and click the Dead or Alive? button. Your web application requests the information from the DeadOrAliveWS web service and displays the result in the label.
   Note: If no information is displayed, that name may not be in the database. Check your spelling or try a different name.