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();
}
}
}