wp8字典<字符串，列表<object>>已解决

Question

嗨我新与wp8我试图开发一个应用程序。我有一些问题，从我 字典来获得我不知道什么是错在这里是我的代码

for (int i = 0; i < SharedInformation.tab.Length; i++) 
{ 
    lsCategorie.Clear(); 
    for (int j = 0; j < SharedInformation.SharedLscitation.Count; j++) 
    { 
     if (SharedInformation.tab[i].Equals(SharedInformation.SharedLscitation[j].categorie.ToString())) 
     { 
      lsCategorie.Add(SharedInformation.SharedLscitation[j]); 
     } 
    } 
    SharedInformation.dic.Add(SharedInformation.tab[i], lsCategorie); 
} 

和我的电话

lsCitation = new List<Citation>(); 
lsCitation = (List<Citation>) SharedInformation.dic["amour"]; 

listbox.DataContext = lsCitation; 

我的完整代码

public partial class MainPage : PhoneApplicationPage 
{ 
    private Popup popup; 
    private BackgroundWorker backroungWorker; 
    ShareStatusTask quotesh = new ShareStatusTask(); 
    SmsComposeTask quotesms = new SmsComposeTask(); 
    List<Citation> lsCitation = new List<Citation>(); 
    List<Citation> lsCategorie = new List<Citation>(); 

    // Constructeur 
    public MainPage() 
    { 
     InitializeComponent(); 
     ShowSplash(); 

    } 

    private void ShowSplash() 
    { 
     this.popup = new Popup(); 
     this.popup.Child = new SplashScreen(); 
     this.popup.IsOpen = true; 
     StartLoadingData(); 
    } 

    private void StartLoadingData() 
    { 
     backroungWorker = new BackgroundWorker(); 
     backroungWorker.DoWork += new DoWorkEventHandler(backroungWorker_DoWork); 
     backroungWorker.RunWorkerCompleted += new RunWorkerCompletedEventHandler(backroungWorker_RunWorkerCompleted); 
     backroungWorker.RunWorkerAsync(); 
    } 

    void backroungWorker_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e) 
    { 
     this.Dispatcher.BeginInvoke(() => 
     { 
      this.popup.IsOpen = false; 

     } 
     ); 
    } 

    void backroungWorker_DoWork(object sender, DoWorkEventArgs e) 
    { 
     //here we can load data 
     Thread.Sleep(9000); 

     if (IsolatedStorageSettings.ApplicationSettings.Contains("data") == false) 
     { 
      InitializeComponent(); 
      WebClient web = new WebClient(); 
      web.DownloadStringCompleted += web_DownloadStringCompleted; 
      string uri = "http://quotesconsommation.azurewebsites.net/json/json.php"; 
      web.DownloadStringAsync(new Uri(uri)); 
      IsolatedStorageSettings.ApplicationSettings["data"] = 1; 
      IsolatedStorageSettings.ApplicationSettings["citation"] = lsCitation; 
      SharedInformation.SharedLscitation = lsCitation; 
      MessageBox.Show("" + NetworkInterface.GetIsNetworkAvailable() + ""); 

     } 
     else 
     { 
      SharedInformation.SharedLscitation = IsolatedStorageSettings.ApplicationSettings["citation"] as List<Citation>; 
     } 
     for (int i = 0; i < SharedInformation.tab.Length; i++) 
     { 
      lsCategorie.Clear(); 
      for (int j = 0; j < SharedInformation.SharedLscitation.Count; j++) 
      { 

       if (SharedInformation.tab[i].Equals(SharedInformation.SharedLscitation[j].categorie.ToString())) 
       { 
        lsCategorie.Add(SharedInformation.SharedLscitation[j]); 
       } 
      } 
      SharedInformation.dic.Add(SharedInformation.tab[i], lsCategorie); 
     } 
    } 
    void web_DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e) 
    { 
     var rootObject = JsonConvert.DeserializeObject<RootObject>(e.Result); 


     foreach (var blog in rootObject.citation) 
     { 
      lsCitation.Add(blog); 
     } 

，并在那里我拨打电话

List<Citation> lsCitation; 
    public TOUTES() 
    { 
     InitializeComponent(); 


     lsCitation = new List<Citation>(); 
     lsCitation = (List<Citation>) SharedInformation.dic["amour"]; 

     listbox.DataContext = lsCitation; 

    } 

亩sharedinformation类

public static class SharedInformation 
{ 

    public static Citation Sharedcitation; 
    public static List<Citation> SharedLscitation; 
    public static Dictionary<string, List<Citation>> dic = new Dictionary<string, List<Citation>>(); 
    public static String[] tab = { "amour", "art et spectacle", "arts et creation", "bonheur", "cinema", "cultures", "famille", "fetes", "humour", "insolite", "livres et lettres", "musique", "nature", "philosophie", "pratique", "proverbes", "sagesse", "sciences", "sport et loisirs", "theatre", "travail" }; 
    public static bool connectionstatus; 
} 

Answer 1

你不能在List<T>叫Clear() - 你需要一个新的每次：

for (int i = 0; i < SharedInformation.tab.Length; i++) 
{ 
    // Make a new list, don't reuse it! 
    lsCategorie = new List<object>(); 
    for (int j = 0; j < SharedInformation.SharedLscitation.Count; j++) 
    { 

由于List<T>是引用类型（类），每次添加时，都不会添加列表的整个副本 - 它只是将引用添加到同一个列表中。通过你的循环下一次，你清楚了老列表和添加新的项目给它，等

因此，你会看到的行为是每个关键还得从去年标签的项目物品，因为它们都是完全相同的List<T>实例。