列表视图不显示名称空间值8.1运行时

Question

我试图使用folloiwng绑定一个简单的列表视图控制

<ListView x:Name="listView" ItemsSource="{Binding}"> 

     <StackPanel Orientation="Horizontal" Width="292" Height="80"> 
     <Border Height="60" Width="60" Margin="10,10,0,10"> 
      <Image Source="/SampleImage.png" Stretch="UniformToFill"/> 
     </Border> 
     <StackPanel Orientation="Vertical" VerticalAlignment="Top" Margin="0,10,0,0"> 
      <TextBlock Text="{Binding description}" 
         Margin="10,0,0,0" Width="180" Height="42" 
         TextTrimming="WordEllipsis" TextWrapping="Wrap" HorizontalAlignment="Left"/> 
      <TextBlock Text="{Binding Title}" 
         Margin="10,2,0,0" Width="180" Height="14" 
         TextTrimming="WordEllipsis" HorizontalAlignment="Left" 
         FontSize="9" Opacity="0.49"/> 
     </StackPanel> 
      </StackPanel> 

    </ListView> 

但其作为原料，解析这样 创建时，我引用我的列表中的某些原因;使用系统的 ; using System.Collections.Generic; using System.Collections.ObjectModel; using System.ComponentModel;使用System.Linq的 ; using System.Threading.Tasks;

namespace Curo.DataModel 
{ 
    public class curoLists : INotifyPropertyChanged 
    { 
     public curoLists() 
     { 

     } 
     public curoLists(String uniqueId, String title, String subtitle, String imagePath, String description, String content, string type) 
     { 
      this.UniqueId = uniqueId; 
      this.Title = title; 
      this.Subtitle = subtitle; 
      this.Description = description; 
      this.ImagePath = imagePath; 
      this.Content = content; 
      this.Type = type; 
     } 


     public curoLists(String uniqueId, String title, String subtitle, String imagePath, String description, String content, bool unread, Int32 status) 
     { 
      UniqueId = uniqueId; 
      Title = title; 
      Subtitle = subtitle; 
      Description = description; 
      ImagePath = imagePath; 
      Content = content; 
      Unread = unread; 
      Status = status; 
     } 


     private bool _unread; 

     private string _title; 
     public string UniqueId { get; private set; } 
     public string Title 
     { 
      get { return _title; } 

      set 
      { 
       _title = value; 
       NotifyPropertyChanged("Title"); 
      } 
     } 
     public string Subtitle { get; private set; } 
     public string Description { get; private set; } 
     public string ImagePath { get; private set; } 
     public string Content { get; private set; } 
     public int Status { get; private set; } 
     public string Type { get; private set; } 

     public string ViewToUse { get; private set; } 
     public bool Unread 
     { 
      get { return _unread; } 
      set 
      { 
       _unread = value; 
       NotifyPropertyChanged("Unread"); 
      } 
     } 

     public event PropertyChangedEventHandler PropertyChanged; 

     private void NotifyPropertyChanged(String info) 
     { 
      if (PropertyChanged != null) 
      { 
       PropertyChanged(this, new PropertyChangedEventArgs(info)); 
      } 
     } 

     public static async Task<curoLists> CreateFromParseObject(ParseObject parseObject) 
     { 
      return await Task.Run<curoLists>(() => 
      { 
       var mlist = new curoLists(); 

       mlist.Title = parseObject.ObjectId; 
       if (parseObject.ContainsKey("name")) 
       { 
        mlist.Title = (string)parseObject["name"]; 
       } 


       if (parseObject.ContainsKey("description")) 
       { 
        mlist.Description = (string)parseObject["description"]; 
       } 
       if (parseObject.ContainsKey("image")) 
       { 
        mlist.ImagePath = (string)parseObject["image"]; 
       } 


       if (parseObject.ContainsKey("type")) 
       { 
        string mtype = (string)parseObject["type"]; 

        if (mtype == "N") 
        { 
         mlist.Type = "Notes"; 
         mlist.ViewToUse = "Notes.Xaml"; 
        } 
       } 
       return mlist; 
      }); 
     } 
    } 

} 

它不显示请求的数据，而只是显示下面的内容。我在填充以下mannor

List<curoLists> cLists; 
    public ClientsManage() 
    { 
     this.InitializeComponent(); 

     PopulatelistAsync(); 
    } 

public async Task PopulatelistAsync() 
    { 
     try 
     { 
      curoListsDal _db = new curoListsDal(); 


      cLists = await _db.GetListsAync(); 

      listView.ItemsSource = cLists; 


     } 
     catch (Exception ex) 
     { 
     } 

    } 

我的清单，但它只是显示的名字空间，而不是数据Curo.DataModel.CuroLists。当我调试数据时，它确定了它们的正确拼写，当我编译时，它唯一抱怨的是我的构造函数，我没有await命令，但不会使数据不会显示它？

Answer 1

ListView是单列。所以你必须用GridView来定制它。我也ASYN添加Window_Loaded方法，并拥有德尔：

XAML：

<Window x:Class="WpfApplication1.MainWindow" 
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
     Title="MainWindow" Height="350" Width="525" 
     Loaded="Window_Loaded"> 
    <ListView x:Name="listView"> 
     <ListView.View> 
      <GridView> 
       <GridViewColumn Width="140" Header="Game Name" 
       DisplayMemberBinding="{Binding Description}" /> 
       <GridViewColumn Width="140" Header="Title" 
       DisplayMemberBinding="{Binding Title}" /> 
      </GridView> 
     </ListView.View> 
    </ListView> 
</Window> 

后面的代码：

public partial class MainWindow : Window 
{ 
    private List<curoLists> cLists; 

    public MainWindow() 
    { 
     InitializeComponent(); 
    } 

    // decorate this method with asyn 
    private async void Window_Loaded(
     object sender, RoutedEventArgs e) 
    { 
     await PopulatelistAsync(); 
    } 

    public async Task PopulatelistAsync() 
    { 
     try 
     { 
      curoListsDal _db = new curoListsDal(); 
      cLists = await _db.GetListsAync(); 
      listView.ItemsSource = cLists; 
     } 
     catch (Exception ex) 
     { 
     } 
    } 
} 

public class curoListsDal 
{ 
    public async Task<List<curoLists>> GetListsAync() 
    { 
     return await 
      Task.Run<List<curoLists>>(
       () => 
       { 
        Thread.Sleep(2000); // long run 
        var result = new List<curoLists>(); 
        for (var i = 0; i < 3; i++) 
        { 
         var id = Guid.NewGuid().ToString(); 
         var mlist = new curoLists(id, 
          "title" + id, "subtitle", "imagePath", 
          "desc", "content", true, 1); 
         result.Add(mlist); 
        } 
        return result; 
       }); 
    } 
} 

希望这有助于。