Deploy your Web service to a Web server. For more information, see XML Web Service Publishing and Deployment.

Access a Web browser and enter the URL for your Web service in the address bar, using the following format:

http://servername/apppath/webservicename.asmx

For example, suppose you have published a Web service named StockServices. When published, the base URL for this service is http://<servername>/apppath/StockServices.asmx. You could test this service by entering this HTTP-GET request in the browser's address bar:

http://<servername>/apppath/StockServices.asmx

The server, in response to this request, displays the Web service's HTML description page.

The Web service's HTML description page shows you all the Web service methods supported by a particular Web service. Link to the desired Web service method and enter the necessary parameters to test the method and see the XML response.

Deploy your Web service to a Web server. For more information, see XML Web Service Publishing and Deployment.

Access a Web browser and enter the URL for your Web service method in the address bar, using this format:

http://servername/vdir/webservicename.asmx/Methodname?parameter=value

Note:
The Web service method name in this syntax is case sensitive, but the server, project, and Web service names are not.

For example, suppose the StockServices Web service from the preceding procedure contains a Web service method called GetQuote; the Web service method accepts a stock symbol as a parameter, returning the price as a double-precision floating-point number. Enter the following HTTP-GET request in the browser's address bar to test this method:

http://<servername>/apppath/StockServices.asmx/GetStockQuote?tickerName=MSFT

The server sends a response containing an XML document, which is displayed in the browser. For the GetQuote example, the XML has the current price of the stock you request. The result might look like the following:

<?xml version="1.0" ?>

<double>74.5</double>

Deploy your Web service to a Web server. For more information, see XML Web Service Publishing and Deployment. This procedure uses as an example the following Web service, deployed as a file math.asmx that is accessible from the virtual root of a site http://www.contoso.com:

<%@ WebService Language="C#" Class="Math" %>
using System.Web.Services;
public class Math : WebService {
     [ WebMethod ]
     public int Add(int num1, int num2) {
          return num1+num2;
     }

     [ WebMethod ]
     public int Subtract(int num1, int num2) {
          return num1-num2;
     }
}

<%@ WebService Language="VB" Class="Math" %>
Imports System.Web.Services

Public Class Math
    Inherits WebService

    <WebMethod> _
    Public Function Add(num1 As Integer, num2 As Integer) As Integer
        Return num1 + num2
    End Function    
    
    <WebMethod> _
    Public Function Subtract(num1 As Integer, num2 As Integer) As Integer
        Return num1 - num2
    End Function
End Class

Create an HTML page with a form that has its method attribute set to POST. Use the following format:

   <form method=POST action='http://www.contoso.com/math.asmx/Subtract'>
       <input type="text" size="5" name='num1'\"></td> -
       <input type="text" size="5" name='num2'\"></td> =
       <input type=submit value="Subtract"> </td>
   </form>

Access a Web browser and enter the URL for the HTML document you created in the previous step.

The HTML document created in the previous step is displayed.

Enter the appropriate values for the Web service method in the text boxes and click the submit button.

For example, if you entered 6 and then 3 into the two text boxes for the example's Subtract Web service method, the following result is returned:

<?xml version="1.0" ?> 
<int xmlns="http://tempuri.org/">3</int>