Windows Phone动态调用Webservice

网上的一些Windows Phone调用WebService的教程大多数都是通过”添加服务引用”来做，万一WebService的地址改变了就很麻烦，这几天查了很多资料，终于在WP里实现了动态调用WebService的方法。
1.命令提示符进行目录C:\Program Files (x86)\Microsoft SDKs\Windows Phone\v8.0\Tools。
2.运行SlSvcUtil http://webservice.webxml.com.cn/WebServices/MobileCodeWS.asmx就可以生成MobileCodeWS.cs的代理类。
3.把这个类引用到WP8的项目。
4.调用

string url = @"http://webservice.webxml.com.cn/WebServices/MobileCodeWS.asmx";
System.ServiceModel.BasicHttpBinding theBinding = new System.ServiceModel.BasicHttpBinding();
theBinding.MaxReceivedMessageSize = int.MaxValue;
theBinding.MaxBufferSize = int.MaxValue;

MobileCodeWSSoapClient wsClient = new MobileCodeWSSoapClient(theBinding, new System.ServiceModel.EndpointAddress(url));
wsClient.getMobileCodeInfoCompleted += (s, arg) =>
                {
                    if (arg.Error != null)
                    {
                        this.txtTip.Text = "执行错误！";
                        return;
                    }
                    this.txtTip.Text = arg.Result;
                };
            wsClient.getMobileCodeInfoAsync("123456789", "");