<%@ WebService Language="C#" Class="Samples.AspNet.WebService" %>
 
using System;
using System.Web;
using System.Web.Services;
using System.Xml;
using System.Web.Services.Protocols;
using System.Web.Script.Services;
 
namespace Samples.AspNet
{
    [WebService(Namespace = "http://tempuri.org/")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [ScriptService]
    public class WebService : System.Web.Services.WebService
    {

        private string _xmlString =
            @"<?xml version=""1.0"" encoding=""utf-8"" ?>
                <message>
                    <content>
                        Welcome to the asynchronous communication layer world!
                    </content>
                </message>";

        // This method returns an XmlDocument type.
        [WebMethod]
        [ScriptMethod(ResponseFormat = ResponseFormat.Xml)]
        public XmlDocument GetXmlDocument()
        {
            XmlDocument xmlDoc = new XmlDocument();
            xmlDoc.LoadXml(_xmlString);
            return xmlDoc;
        }
      
        // This method uses GET instead of POST.
        // For this reason its input parameters
        // are sent by the client in the
        // URL query string.
        [WebMethod]
        [ScriptMethod(UseHttpGet = true)]
        public string EchoStringAndDate(DateTime dt, string s)
        {
            return s + ":" + dt.ToString();
        }
        
        [WebMethod]
        public string GetServerTime()
        {

            string serverTime =
                String.Format("The current time is {0}.", DateTime.Now);

            return serverTime;
           
        }
      
        [WebMethod]
        public string Add(int a, int b)
        {

            int addition = a + b;
            string result = 
                String.Format("The addition result is {0}.", 
                    addition.ToString());

            return result;

        }
     
        [WebMethod]
        [ScriptMethod(ResponseFormat = ResponseFormat.Xml, 
            XmlSerializeString = true)]
        public string GetString()
        {
            return "Hello World";           
        }
      
    }

}