XmlInclude或SoapInclude

Question

我正在开发一个webservice，它返回我在webservice中定义的类的数组。当我测试它时，我得到："System.InvalidOperationException:类型WebSite+HostHeader不是预期的。使用XmlInclude或SoapInclude属性指定静态未知的类型。“

以下是代码的一部分：

[WebService(Namespace = "http://WebSiteInfo.Podiumcrm.com/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
public class WebSite : System.Web.Services.WebService
{
    public class WebSiteEntry
    {
        public string SiteName = "";
        public string Comment = "";
        public string IISPath = "";
        public int SiteID = 0;
        public ArrayList HostHeaders;

        public WebSiteEntry()
        {
        }
    }
    public class HostHeader
    {
        public string IPAddress = "";
        public int Port = 0;
        public string URL = "";

        public HostHeader()
        {
        }
    }


    [WebMethod(EnableSession = true)]
    [TraceExtension(Filename = @"C:\DotNetLogs\WebSiteServices.log")]
    public WebSiteEntry[] WebSites()
    {...}
}

当我尝试的时候：

[WebService(Namespace = "http://WebSiteInfo.Podiumcrm.com/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[XmlInclude(typeof(WebSiteEntry))]
[XmlInclude(typeof(WebSiteProperty))]
[XmlInclude(typeof(HostHeader))]

public class WebSite : System.Web.Services.WebService
{...}

我得到的信息是：“找不到类型或命名空间名称XmlInclude (是否缺少using指令或程序集引用？)”

指能给我既编又执行的咒语的人！

谢谢..。

Answer 1

从您收到的错误中：

找不到类型或命名空间名称“XmlInclude”(是否缺少using指令或程序集引用？)

看起来您缺少System.Xml.Serialization Namespace。您可以完全限定XmlInclude类型，如下所示：

System.Xml.Serialization.XmlInclude(typeof(WebSiteProperty))

或者通过using指令添加命名空间：

using System.Xml.Serialization