Web 服务错误序列化成员

Question

当我运行我的网络服务时，我想询问网络服务 我调试的时候没有报错，但是运行的时候， 我的浏览器出现此错误：

Server Error in '/' Application.
Cannot serialize member System.Web.UI.Control.Site of type System.ComponentModel.ISite because it is an interface.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

我已经谷歌了，但我没有得到我的答案。即使我使用了另一个 System.Web.UI，它仍然一样 请有人帮助我

无论如何，这是我的网络服务代码：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;

namespace Rabbitry
{
    /// <summary>
    /// Summary description for WebService1
    /// </summary>
    [WebService(Namespace = "http://tempuri.org/")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [System.ComponentModel.ToolboxItem(false)]
    // To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line. 
    // [System.Web.Script.Services.ScriptService]

    public class KaryawanWS : System.Web.Services.WebService
    {
        public RabbitryDB _db = new RabbitryDB();

        [WebMethod] // get all employee data
        public Karyawan[] GetAllKaryawan()
        {
            return _db.Karyawans.ToArray();
        }

        [WebMethod] //get employee data by ID
        public Karyawan GetKaryawanByID(string NIK)
        {
            return _db.Karyawans.FirstOrDefault(x => x.NIK == NIK);
        }

        [WebMethod] // inserting new employee
        public void TambahKaryawan(string NIK, string ktpKaryawan, string namaKaryawan, string alamatKaryawan, 
                                    string telpKaryawan, string hpKaryawan, string joinKaryawan, string statusKaryawan,
                                    string pwd, string role)
        {
            DateTime join;
            bool rol, status;

            DateTime.TryParse(joinKaryawan, out join);
            bool.TryParse(role, out rol);
            bool.TryParse(statusKaryawan, out status);

            Karyawan k = new Karyawan
            {
                NIK = NIK,
                ktpKaryawan = ktpKaryawan,
                namaKaryawan = namaKaryawan,
                alamatKaryawan = alamatKaryawan,
                telpKaryawan = telpKaryawan,
                hpKaryawan = hpKaryawan,
                joinKaryawan = join,
                statusKaryawan = status
            };

            Login l = new Login
            {
                NIK = NIK,
                Password = pwd,
                role = rol
            };

            _db.Karyawans.InsertOnSubmit(k);
            _db.Logins.InsertOnSubmit(l);
            _db.SubmitChanges();
        }

        [WebMethod] //edit employee data
        public void EditKaryawan(string NIK, string alamatKaryawan,
                                    string telpKaryawan, string hpKaryawan, string statusKaryawan)
        {
            bool status;
            bool.TryParse(statusKaryawan, out status);

            Karyawan k = _db.Karyawans.FirstOrDefault(x => x.NIK == NIK);
            if (k != null)
            {
                k.alamatKaryawan = alamatKaryawan;
                k.telpKaryawan = telpKaryawan;
                k.hpKaryawan = hpKaryawan;
                k.statusKaryawan = status;
                _db.SubmitChanges();
            }
        }


        [WebMethod] //deleting emplyee data
        public void HapusKaryawan(string NIK)
        {
            Karyawan k = _db.Karyawans.FirstOrDefault(x => x.NIK == NIK);
            Login l = _db.Logins.FirstOrDefault(x => x.NIK == NIK);
            if (k != null)
            {
                _db.Logins.DeleteOnSubmit(l);
                _db.Karyawans.DeleteOnSubmit(k);
                _db.SubmitChanges();
            }            
        }
    }
}

Answer 1

这件事我已经做完了

问题在于 DBML 名称 表的名称不能以 S 结尾，所以我从 Kamus 更改为 Kamu，它运行良好