MapImageLayerTables.xaml

<UserControl 
    x:Class="ArcGISRuntime.UWP.Samples.MapImageLayerTables.MapImageLayerTables"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:esriUI="using:Esri.ArcGISRuntime.UI.Controls">
    <Grid>
        <esriUI:MapView x:Name="MyMapView" />
        <Border Style="{StaticResource BorderStyle}">
            <Grid>
                <Grid.RowDefinitions>
                    <RowDefinition Height="auto" />
                    <RowDefinition Height="*" />
                </Grid.RowDefinitions>
                <TextBlock Grid.Row="0"
                           Text="Select a comment to see the related service request."
                           TextWrapping="Wrap"
                           FontWeight="SemiBold"/>
                <ListBox x:Name="CommentsListBox"
                         Grid.Row="1"
                         MaxHeight="140"
                         Margin="0,5,0,0"
                         SelectionMode="Single" SelectionChanged="CommentsListBox_SelectionChanged">
                    <ListBox.ItemTemplate>
                        <DataTemplate>
                            <TextBlock Text="{Binding  Attributes[comments]}"/>
                        </DataTemplate>
                    </ListBox.ItemTemplate>
                </ListBox>
            </Grid>
        </Border>
    </Grid>
</UserControl>