UWP中的设计时数据样本

我需要在我的应用程序设计器中显示一些数据样本，这样我就可以开始样式化我的页面外观，而不必运行它。我有以下代码

SampleData.cs

public class SampleData
{
    public ObservableCollection<Surat> ListSurat
    {
        get
        {
            return new ObservableCollection<Surat>()
            {
                new Surat() {Judul="Title 1", Nomor="1", Tanggal= new DateTime(2014,10,14), ID="414683" },
                new Surat() {Judul="Title 2", Nomor="2", Tanggal= new DateTime(2014,10,14), ID="414683" },
             };
        }
    }
}

App.xaml

<Application.Resources>
    <ResourceDictionary >
        <local:SampleData x:Key="SampleData"/>
    </ResourceDictionary>  
</Application.Resources>

MyPage.xaml

<ListView x:Name="ListView_DokumenMasuk"
                      ItemsSource="{Binding ListSurat}"
                      d:DataContext="{StaticResource SampleData}"
                      >
                <ListView.ItemTemplate>
                    <DataTemplate>
                        <Grid Width="450" Height="70">
                            <Grid>
                                <Grid.RowDefinitions>
                                    <RowDefinition Height="*"/>
                                    <RowDefinition Height="*"/>
                                </Grid.RowDefinitions>
                                <Grid Grid.Row="0">
                                    <Grid.ColumnDefinitions>
                                        <ColumnDefinition Width="2*"/>
                                        <ColumnDefinition Width="*"/>
                                    </Grid.ColumnDefinitions>
                                    <TextBlock Text="{Binding Judul}" Grid.Column="0" FontSize="16"/>
                                    <TextBlock Text="{Binding Tanggal}" Grid.Column="1" FontSize="16"/>
                                </Grid>
                                <Grid Grid.Row="1">
                                    <Grid.ColumnDefinitions>
                                        <ColumnDefinition Width="2*"/>
                                        <ColumnDefinition Width="*"/>
                                    </Grid.ColumnDefinitions>
                                    <TextBlock Grid.Column="0" Text="{Binding Nomor}"/>
                                    <TextBlock Grid.Column="1">
                                        <Run Text="DocID : "/>
                                        <Run Text="{Binding ID}"/>
                                    </TextBlock>
                                </Grid>
                            </Grid>                                             
                        </Grid>
                    </DataTemplate>
                </ListView.ItemTemplate>                    
            </ListView>

但是数据样本不会出现，而是作为字段名出现在设计器中。这是我的应用程序设计的截图:https://i.stack.imgur.com/M1B8E.jpg

我一直在寻找这个问题的解决方案，但仍然没有运气，我只找到了WPF的解决方案，我担心如果在UWP有什么变化。

任何帮助将不胜感激!

d:DataContext="{Binding Source={d:DesignInstance Type=local:SampleData, IsDesignTimeCreatable=True}}"

d:DataContext="{d:DesignInstance local:SampleData, IsDesignTimeCreatable=True}"

xmlns:sampledata="using:UniversalProject.UWP.SampleData" 
d:DataContext="{Binding Source={d:DesignInstance Type=sampledata:StepsSample, IsDesignTimeCreatable=True}}"