使用webservice的有关问题

使用webservice的问题
[code=HTML][/code]

C# code

[System.Web.Services.WebServiceBindingAttribute(Name = "HelloWorld", Namespace = "http://tempuri.org/")]public partial class Soap : System.Web.Services.Protocols.SoapHttpClientProtocol{    public Soap()    {        this.Url = "http://localhost/webservice.asmx";    }    public DateTime GetDate()    {        object[] results = this.Invoke("HelloWorld", new object[] { });        return ((DateTime)(results[1]));    }}

HTML code

异常详细信息: System.ArgumentException: HelloWorld Web 服务方法名无效。源错误: 行 65:     public DateTime GetDate()行 66:     {行 67:         object[] results = this.Invoke("HelloWorld", new object[] { });行 68:         return ((DateTime)(results[1]));行 69:     }