1、创建一个新的类。如"AuthHeaderUser"，在传承"System.Web.Services.Protocols.SoapHeader"类别

2、新WebService，有一个AuthHeaderUser物业类型

3、新WebService一Web方法，指定Soap头信息，如：

[SoapHeader("AuthenticationUser")]

[WebMethod(Description="返回股票行情信息")]

public DataSet GetQuotedPrice()

{

if (AuthenticationUser != null) //step4,验证Soap头是否为空

{

//验证

WebServiceSoapHeaderAuthentication.DAL.LoginResult lr =

new WebServiceSoapHeaderAuthentication.DAL.UserDAL().Login(AuthenticationUser.UserId, AuthenticationUser.Password);

if (lr == LoginResult.Succeed)//登录成功

return new WebServiceSoapHeaderAuthentication.DAL.QuotedPriceDAL().GetQuotedPriceDataset();

else

throw new ApplicationException("Log in failed : " + lr.ToString());

}

else

throw new SoapHeaderException("......", SoapException.ClientFaultCode);

}

4、client引用：

//Web服务

localhost1583QuotedPriceService.QuotedPriceService service =

new WebServiceSoapHeaderAuthentication.QuotedPriceViewForm.localhost1583QuotedPriceService.QuotedPriceService();

//准备Soap头

WebServiceSoapHeaderAuthentication.BOL.User u = CurrentUser.getInstance();

localhost1583QuotedPriceService.AuthHeaderUser login_user =

new WebServiceSoapHeaderAuthentication.QuotedPriceViewForm.localhost1583QuotedPriceService.AuthHeaderUser();

login_user.UserId = u.UserId;

login_user.Password = u.UserPassword;

//Soap第一项任务

service.AuthHeaderUserValue = login_user;

DataSet ds = service.GetQuotedPrice();

//todo:......

5、完成