Question

我使用linq to SQL作为我的ORM，然后通过Web服务将linq To Sql对象传递给我的aspx UI页面。

当我直接将Linq传递给sql对象时，它一直工作正常，它们被序列化，我可以像json一样访问它们。当我通过poco DTO时，这个web服务也可以正常工作，因为这些对象中的一些数据来自几个不同的linq到SQL类。

我遇到的问题是当我尝试使用linq到SQL类时，在自定义分部类中定义了额外的字段。我在部分类的自定义端的字段没有穿过Web服务，部分类的linq到sql生成端的字段确实遇到了。

当我创建对象时，字段就在那里，我可以在visual studio调试器中看到它们，直到它们穿过服务，但它们不在另一侧的json中。

这是部分类

using System.Runtime.Serialization;

namespace GPSO.ATOMWebDataLayer.LinqToSql
{
    public partial class Geofence
    {
        public string FillColor { get; set; } 
    }
}

这是网络服务

using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Data.SqlClient;
using System.Diagnostics;
using System.Linq;
using System.Net;
using System.ServiceModel;
using System.ServiceModel.Activation;
using System.ServiceModel.Web;
using System.Text;
using System.Web;
using System.Web.Profile;
using System.Web.Security;
using System.Xml;
using GPSO.ATOMWebBusinessLayer;
using GPSO.ATOMWebDataLayer;
using GPSO.ATOMWebDataLayer.LinqToSql;
using GPSO.ATOMWebDataLayer.Objects;
using GPSOnline.ReportWebService;

using Contact = GPSO.ATOMWebDataLayer.LinqToSql.Contact;
using Event = GPSO.ATOMWebBusinessLayer.Event;
using Geofence = GPSO.ATOMWebBusinessLayer.Geofence;

namespace GPSOnline
{
    [ServiceContract(Namespace = "GPSOnline")]
    [ServiceBehavior(IncludeExceptionDetailInFaults = true)]
    [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
    public class ATOMWebService
    {
        private string _atomDbConnectionString;
        private string _aspNetDbConnectionString;
        private string _satelliteDbConnectionString;

        [OperationContract]
        [WebGet]
        public IEnumerable<GPSO.ATOMWebDataLayer.LinqToSql.Geofence> GetAllGeofences()
        {
            NoCache();

            var geofenceRepo = new GeofenceRepository(GetConnectionString());
            return geofenceRepo.GetAllGeofences().ToList();
        }
    }
}

and here is the Repository 

using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using GPSO.ATOMWebBusinessLayer;
using GPSO.ATOMWebDataLayer.LinqToSql;
using GPSO.MapUtilities;
using GPSO.Repository;
using Microsoft.SqlServer.Types;
using Geofence = GPSO.ATOMWebBusinessLayer.Geofence;

namespace GPSO.ATOMWebDataLayer
{
    public class GeofenceRepository 
    {
        private static string _connectionString = "";

        public GeofenceRepository(string connectionString)           
        {
            _connectionString = connectionString;
        }
        public IEnumerable<LinqToSql.Geofence> GetAllGeofences()
        {
            var dataContext = new AtomWebDataContext(_connectionString);
            return allGeofences = dataContext.Geofences.ToList();    
        }
}

这是ui Page

  <%@ Page Language="C#" MasterPageFile="~/Private/ATOMWEB.master" AutoEventWireup="true"
    Async="true" Inherits="GPSOnline.Assets" Title="ATOM®web Asset Map" CodeBehind="Assets.aspx.cs" %>

<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>
<%@ Register Src="../UserControls/ucAssetPicker_ClientEvent.ascx" TagName="ucAssetPicker"
    TagPrefix="uc1" %>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolderLeft" runat="Server">
    <asp:ScriptManagerProxy ID="ScriptManagerProxy" runat="server">
        <Services>
            <asp:ServiceReference Path="/ATOMWEBService.svc" />
        </Services>
        <Scripts>
            <asp:ScriptReference Path="http://maps.google.com/maps?file=api&amp;v=2&amp;sensor=true&amp;client=gme-gpsonline" />
            <asp:ScriptReference Path="~/scripts/MapPanel.js" />
            <asp:ScriptReference Path="~/scripts/jquery-1.3.2.min.js" />
            <asp:ScriptReference Path="~/scripts/AssetLabel.js" />
            <asp:ScriptReference Path="~/scripts/NumberFormatting.js" />
            <asp:ScriptReference Path="~/scripts/DateFormatting.js" />
            <asp:ScriptReference Path="~/scripts/Utilities.js" />
            <asp:ScriptReference Path="~/scripts/geofences.js" />
            <asp:ScriptReference Path="~/scripts/mapUtilities.js" />
        </Scripts>
    </asp:ScriptManagerProxy>
    <script type="text/javascript">
        var map = null,
            atomWebServiceProxy = null,
            selectedAssetId = null,
            userPreferences = null,
            userId = null,
            assets = [],
            assetMarkers = [],
            updatedAssets = [],
            assetStatusPanel = null,
            assetContextItem = null,
            trackAsset = false,
            firstTime = true,
            deviceChannels = { },
            assetPanelLayouts = { },
            geoFences = { };

        function contentPageLoad() {
            atomWebServiceProxy = new GPSOnline.ATOMWebService();
        }

        /// <summary>

        /// <summary>        
        /// calls the webservice to get all the geo fences. 
        /// Runs gotGeoFences when service call successfull
        /// </summary>
        function getGeofences() {
           atomWebServiceProxy.GetAllGeofences(gotGeofences);          
        }


        /// <summary>
        /// Add the collection of geoFences to the page       
        /// </summary>        
        /// <param name="Result"> A collection of GeoFences </param>  
        function gotGeofences(result) {

            geoFences = new GeoFencesObj(map, result, "chkToggleGeofences", "<%=RadContextMenuGotoGeofence.ClientID%>", !userPreferences.DefaultShowGeofences);

            if (userPreferences.DefaultLocationType == 2 && userPreferences.HomeSiteId != null) {
                geoFences.zoomToGeofence(userPreferences.HomeSiteId);
            }
        }
}

Answer 1

您需要使用[DataMemberAttribute]：

namespace GPSO.ATOMWebDataLayer.LinqToSql
{
    [DataMember]
    public partial class Geofence
    {
        public string FillColor { get; set; } 
    }
}

Linq到SQl的部分类没有通过Web服务传递

1 个答案: