Связывание данных UWP (C#)

Question

Я пишу приложение для UWP.

Я стараюсь использовать привязку данных.

У меня есть классы

public class Billing 
    { 
     public string first_name { get; set; } 
     public string last_name { get; set; } 
     public string company { get; set; } 
     public string address_1 { get; set; } 
     public string address_2 { get; set; } 
     public string city { get; set; } 
     public string state { get; set; } 
     public string postcode { get; set; } 
     public string country { get; set; } 
     public string email { get; set; } 
     public string phone { get; set; } 


    } 

    public class Shipping 
    { 
     public string first_name { get; set; } 
     public string last_name { get; set; } 
     public string company { get; set; } 
     public string address_1 { get; set; } 
     public string address_2 { get; set; } 
     public string city { get; set; } 
     public string state { get; set; } 
     public string postcode { get; set; } 
     public string country { get; set; } 
    } 

    public class RootObject 
    { 
     public int id { get; set; } 
     public int parent_id { get; set; } 
     public string status { get; set; } 
     public string order_key { get; set; } 
     public string currency { get; set; } 
     public string version { get; set; } 
     public bool prices_include_tax { get; set; } 
     public string date_created { get; set; } 
     public string date_modified { get; set; } 
     public int customer_id { get; set; } 
     public double discount_total { get; set; } 
     public double discount_tax { get; set; } 
     public double shipping_total { get; set; } 
     public double shipping_tax { get; set; } 
     public double cart_tax { get; set; } 
     public double total { get; set; } 
     public double total_tax { get; set; } 
     public Billing billing { get; set; } 
     public Shipping shipping { get; set; } 
     public string payment_method { get; set; } 
     public string payment_method_title { get; set; } 
     public string transaction_id { get; set; } 
     public string customer_ip_address { get; set; } 
     public string customer_user_agent { get; set; } 
     public string created_via { get; set; } 
     public string customer_note { get; set; } 
     public string date_completed { get; set; } 
     public string date_paid { get; set; } 
     public string cart_hash { get; set; } 
     public List<object> line_items { get; set; } 
     public List<object> tax_lines { get; set; } 
     public List<object> shipping_lines { get; set; } 
     public List<object> fee_lines { get; set; } 
     public List<object> coupon_lines { get; set; } 

    } 

Заявляю ObservableCollection, public ObservableCollection<RootObject> Orders { get; set; }

Я получаю JSON как это:

RestAPI rest = new RestAPI("http://simplegames.com.ua/wp-json/wc/v1/", "ck_9d64c027d2c5f81b8bed3342eeccc6d337be813d", "cs_60697b1e6cbdeb8d62d19e0765e339f8e3334754"); 
     WCObject wc = new WCObject(rest); 
     //Get all products 
     var orders = await wc.GetOrders(new Dictionary<string, string>() { 
      { "per_page", "100" }}); 




     string products = orders.ToFormattedJsonString(); 

     List<RootObject> rootObjectData = JsonConvert.DeserializeObject<List<RootObject>>(products); 

Попробуйте связать данные как этот

foreach (RootObject root in rootObjectData) 
     { 


      string date = root.date_created; 
      //string name = root.billing.first_name + root.billing.last_name; 


      Debug.WriteLine(date.ToString()); 



      Orders = new ObservableCollection<RootObject> { new RootObject { date_created = date }, 

      new RootObject { date_created = date } 
      }; 

Но я вижу только одну дату на экране. В консоли отладки около 28 дат.

Как я могу видеть все даты?

Вот моя XAML:

<Page 
x:Class="Milano.InWork" 
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
xmlns:local="using:Milano" 
xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
mc:Ignorable="d"> 

<Grid BorderBrush="White" BorderThickness="1"> 
    <Grid.Background> 
     <ImageBrush Stretch="Fill" ImageSource="Images/Background.png"/> 
    </Grid.Background> 
    <Grid HorizontalAlignment="Left" Height="720" VerticalAlignment="Top" Width="60" BorderBrush="#FFF5F1F1" BorderThickness="0,0,1,0"> 
     <Button x:Name="MenuButton" Content="" HorizontalAlignment="Left" Margin="10,10,0,0" VerticalAlignment="Top" Height="38" Width="38"> 
      <Button.Background> 
       <ImageBrush Stretch="Uniform" ImageSource="Images/Menu-100.png"/> 
      </Button.Background> 
     </Button> 
     <Button x:Name="logoutbutton" Content="" HorizontalAlignment="Left" Margin="10,650,0,0" VerticalAlignment="Top" Height="43" Width="38"> 
      <Button.Background> 
       <ImageBrush Stretch="Uniform" ImageSource="Images/Logout_Button.png"/> 
      </Button.Background> 
     </Button> 

    </Grid> 
    <Grid HorizontalAlignment="Left" Height="47" Margin="63,2,-121,0" VerticalAlignment="Top" Width="1338" BorderBrush="#FFFDFDFD" Padding="0,0,0,1" BorderThickness="0,0,0,1"> 
     <TextBlock x:Name="textBlock" HorizontalAlignment="Left" TextWrapping="Wrap" Text="В Работе" VerticalAlignment="Top" Height="37" Width="1218" FontSize="32" FontFamily="SF UI Display" Padding="550,0,0,0" Foreground="White"/> 
    </Grid> 
    <ScrollViewer HorizontalAlignment="Left" Height="668" Margin="63,52,0,0" VerticalAlignment="Top" Width="350"> 
     <GridView x:Name="OrdersGridView" > 
      <GridView.ItemTemplate> 
       <DataTemplate> 
        <StackPanel> 
         <TextBlock Text="{Binding date_created}" /> 


        </StackPanel> 
       </DataTemplate> 
      </GridView.ItemTemplate> 
     </GridView> 
    </ScrollViewer> 



</Grid> 

Answer 1

Это просто показывает результат из-за этой линии:

Orders = new ObservableCollection<RootObject> { new RootObject { date_created = date }, 

      new RootObject { date_created = date } 
      }; 

Вы просто добавить два RootObject в вашей коллекции.

Если вы хотите добавить столько дат, как rootObjectData, вы должны сделать что-то вроде этого:

ObservableCollection<RootObject> aux = new ObservableCollection<RootObject>(); 

foreach (RootObject root in rootObjectData) 
     { 


      string date = root.date_created; 
      //string name = root.billing.first_name + root.billing.last_name; 


      Debug.WriteLine(date.ToString()); 



      aux.Add(root); 
} 

Orders = aux;