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

//請注意此命名空間必須有別于代理動態(tài)連接庫上的命名空間。 
//否則，將產(chǎn)生諸如多處定義AuthHeader這樣的錯誤。 
namespace SoapHeadersCS
{

  //由SoapHeader擴展而來的AuthHeader類 
  public class AuthHeaderCS : SoapHeader
  {
    public string Username;
    public string Password;
  }

  //[WebService(Description="用于演示SOAP頭文件用法的簡單示例")] 
  public class HeaderService
  {

    public AuthHeaderCS sHeader;

    [WebMethod(Description = "此方法要求有調(diào)用方自定義設(shè)置的soap頭文件")]
    [SoapHeader("sHeader")]
    public string SecureMethod()
    {

      if (sHeader == null)
        return "ERROR:你不是VIP用戶!";

      string usr = sHeader.Username;
      string pwd = sHeader.Password;

      if (AuthenticateUser(usr, pwd))
      {
        return "成功:" + usr + "," + pwd;
      }
      else
      {
        return "錯誤:未能通過身份驗證";
      }
    }

    private bool AuthenticateUser(string usr, string pwd)
    {

      if ((usr != null) && (pwd != null))
      {
        return true;
      }
      return false;
    }
  }
}

WebService webservice = new WebService();
AuthHeaderCS auth = new AuthHeaderCS();
auth.Username = "vip";
auth.Password = "vippw";
webservice.AuthHeaderCSValue = auth;
textBox1.Text = webservice.SecureMethod();