accessing soap web service method from C#

[amby]

Hi,
I have added web reference using Visual Studio tool i-e Website > add web reference but it add only .disco and .wsdl file. My question is, are these the only 2 files to add? i mean i was expecting .asmx file so that i can see its methods properly. and i wrote code in C# in .aspx.cs(code behind file) which is given below but the error comes saying that invalid web service method name. Check out my code and guide me where i m doing mistake and is that possible to view code of that web service while i can see only .wsdl and .disco file. or tell me that am i going in the right direction or this is not correct way to access Soap web service method. please guide me, i really need help and reply me soon. Below is the code:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.Web.UI;
using System.Web.UI.WebControls;

using System.Diagnostics;
using System.Xml.Serialization;

using System.Web.Services.Protocols;

public partial class Testing : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }

    static Example1 obj = new Example1();
    static string s = obj.printDetails("EX76550");

    [WebMethod()]
    //[ScriptMethod()] 

    public static string SendMessage()
    {
        return "Hello World";

        //send message 
    }

    [System.Web.Services.WebServiceBindingAttribute(
     Name = "ldapSoap",
     Namespace = "http://al2c00/ldap")]

    public class Example1 :
             System.Web.Services.Protocols.SoapHttpClientProtocol
    {

        public Example1()
        {
            this.Url = "http://al2c00:45/LDAP/ldap.asmx";
        }

        [System.Web.Services.Protocols.SoapDocumentMethodAttribute(
             "http://al2c00/ldap/GetEmployeeDetailsBy_NTID",
             RequestNamespace = "http://al2c00/ldap",
             ResponseNamespace = "http://al2c00/ldap",
             Use = System.Web.Services.Description.SoapBindingUse.Literal,
     ParameterStyle = System.Web.Services.Protocols.SoapParameterStyle.Wrapped)]
        public string printDetails(string NTID)
        {
            object[] results = this.Invoke("GetEmployeeDetailsBy_NTID",
                                           new object[] { NTID });
            return ((string)(results[0]));
        }
    }

}