问Datacontext Windows 8应用

EN

<ItemsControl ItemTemplate="{StaticResource test}" DataContext="{Binding ListLineup}">
<DataTemplate x:Key="test">
        <StackPanel>
            <TextBlock Text="{Binding Date}"></TextBlock>
        </StackPanel>
    </DataTemplate>

public class LineUp
{
    public string Id { get; set; }
    public string Date { get; set; }
    public string From { get; set; }
    public string Until { get; set; }

    public LineUp(string id, string date, string from, string until)
    {
        this.Id = id;
        this.Date = date;
        this.From = from;
        this.Until = until;
    }

    public static async Task<List<LineUp>> GetLineUp()
    {
        List<LineUp> lineup = new List<LineUp>();
        using (HttpClient client = new HttpClient())
        {
            string url = @"http://localhost:28603/api/LineUp";
            Uri uri = new Uri(url);
            using (HttpResponseMessage response = await client.GetAsync(uri))
            {
                if (response.IsSuccessStatusCode)
                {
                    string content = await response.Content.ReadAsStringAsync();
                    content = "{'lineups':" + content + "}";

                    ListLineUp CollectionOfLineUps = await JsonConvert.DeserializeObjectAsync<ListLineUp>(content);
                    foreach (LineUp newLineup in CollectionOfLineUps.lineups)
                    {
                        lineup.Add(newLineup);
                    }
                }
                else
                {
                    Debug.WriteLine("Exception when getting the LineUps. API is down ");
                }
            }
        }
        return lineup;
    }
}

public class ListLineUp
{
    public List<LineUp> lineups { get; set; } 
}

 public async void GetAllNeededLists()
    {
        ListLineup = await LineUp.GetLineUp();
        foreach (var lu in ListLineup)
        {
            Debug.WriteLine(lu.Date);
        }

    }