1.1与2.0异步调用Web服务简单示例

WebService代码：

using  System;
using  System.Web;
using  System.Web.Services;
using  System.Web.Services.Protocols;

[WebService(Namespace  =   " http://tempuri.org/ " )]
[WebServiceBinding(ConformsTo  =  WsiProfiles.BasicProfile1_1)]
public   class  Service : System.Web.Services.WebService
{
     public  Service () {

         // 如果使用设计的组件，请取消注释以下行 
         // InitializeComponent(); 
    }

    [WebMethod]
     public   string  HelloWorld( string  strName) {
         string  strName1  =  strName  ??   " 萝卜 " ;
         return  strName1  +   "  你好 " ;
    }
}

1.1异步调用：因为没有VS2003，用#develop写的。

using  System;
using  MyService  =  ServiceTest.Service;

namespace  ServiceTest
{
     class  MainClass
    {
         static  IAsyncResult iresult;
         static  MyService.Service service  =   new  MyService.Service();
        
         public   static   void  Main( string [] args)
        {
             // 同步调用
            Console.WriteLine(service.HelloWorld( null ));
            
             // 异步调用
            AsyncCallback callback  =   new  AsyncCallback(CallBack);
            
            iresult =  service.BeginHelloWorld( " 萝卜青菜 " , callback,  null );
            
            Console.Read();
        }
        
         static   void  CallBack(IAsyncResult iar)
        {
             if  ( object .Equals( null , iar))
            {
                Console.WriteLine( " Null " );
                 return ;
            }
            
             if  (iar.IsCompleted)
            {
                Console.WriteLine(service.EndHelloWorld(iar));
            }
        }
    }
}

2.0异步调用：

using  System;
using  System.Collections.Generic;
using  System.Text;

using  myService  =  ServiceTest.FirstService;

namespace  ServiceTest
{
     class  Program
    {
         static   void  Main( string [] args)
        {
            Console.ForegroundColor  =  ConsoleColor.Green;
             //  同步调用
            myService.Service service  =   new  myService.Service();
            Console.WriteLine(service.HelloWorld( null ));

             //  异步调用
            service.HelloWorldCompleted  +=   delegate ( object  sender, myService.HelloWorldCompletedEventArgs e)
            {
                 if  ( object .Equals( null , e.Error))
                {
                    Console.WriteLine(e.Result);
                }
                 else
                {
                    Console.WriteLine(e.Error.Message);
                }
            };
            service.HelloWorldAsync( " 萝卜青菜 " );
            Console.Read();
        }
    }
}