异步调用Web Service

VS2008、C#

今天发现，在.NET 3.5下，异步调用Web Service与以往似乎有些不同。现在生成的代理类少了 BeginXXX 方法，Why?

1. Web Service

[WebMethod] public string GetUserName() { return "zhenglanzhen"; }

2. 同步调用

class Program { static void Main(string[] args) { Console.WriteLine("step1"); NameServiceProxy.NameService n = new NameServiceProxy.NameService(); Console.WriteLine(n.GetUserName()); Console.WriteLine("step2"); Console.Read(); } }

输出：
step1

zhenglanzhen

step2

 

3. 异步调用

class Program { static void Main(string[] args) { Console.WriteLine("step1"); NameServiceProxy.NameService n = new NameServiceProxy.NameService(); n.GetUserNameCompleted += delegate(object sender, GetUserNameCompletedEventArgs e) { Console.WriteLine(e.Result); }; n.GetUserNameAsync(); Console.WriteLine("step2"); Console.Read(); } }

输出：

step1

step2

zhenglanzhen

 

本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/cnming/archive/2008/06/08/2524956.aspx