如何在Windows Phone 8中将好友列表绑定为longlistselector

Question

我在Windows Phone中进行应用聊天，我的类名为GetFriendResponse

    using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace RAMACHAT.Model
{

    public class FriendInfo
    {
        public bool success { get; set; }
        public int statusCode { get; set; }
        public string message { get; set; }
        public _user data { get; set; }

    }
    public class GetFriendResponse
    {
        public bool success { get; set; }
        public int statusCode { get; set; }
        public string message { get; set; }
        public string _id { get; set; }

        public List<_user> data { get; set; }
    }

和类_user为

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace RAMACHAT.Model
{
    public class _user
    {
        public string _id { get; set; }
        public string username { get; set; }
        public string avatar { get; set; }
        public bool isOnline { get; set; }
        public bool isFollow { get; set; }

    }
}



    }

现在我想在服务器响应用户frendslist时将frendslist设为longlistselector

 string result = await App.client.getAllFriends();
            string resultHistory = await App.client.getChatHistory();
            resultObject = JsonConvert.DeserializeObject<GetFriendResponse>(result);
            var resultHistoryObject = JsonConvert.DeserializeObject<HistoryResponse>(resultHistory);

            List<AlphaKeyGroup.AlphaKeyGroup1<_user>> DataSource = AlphaKeyGroup.AlphaKeyGroup1<_user>.CreateGroups(resultObject.data,
                           System.Threading.Thread.CurrentThread.CurrentUICulture,
                           (_user s) => { return s.username; }, true);
            friendList.ItemsSource = DataSource; 

但是它不起作用，任何人都有修复它的想法，非常感谢！

Answer 1

由于您尚未共享设计代码块，因此可能是XAML页面绑定的问题。 最好您将此 MSDN页面用于longlistselector绑定。