UWP XAML Intellisense DataTemplate.DataType - xaml

Question

Why does intellisense filter out interfaces and abstract classes? If I set DataType to an abstract class, it seems to still work fine. Perhaps this is just a bug? Also, related, inside DataTemplate, when I try to {x:Bind} it filters out inherited properties, so if I have Item : Base, and Base has a property Name, and DataType="Item", it filters out property Name and if I use it anyway, it seems to resolve to the class name. Did I miss something in the docs? Should I be making special non-abstract wrapping classes for every type I want to bind to xaml controls?

Answer 1

After my testing, it seems that inherited interface-properties are not recognized by the compiler when using the X:Bind. But it applies to abstract classes.
You could follow the sample to check your steps.
XAML code:
<ListView x:Name="List" ItemsSource="{x:Bind Fruits}">
<ListView.ItemTemplate>
<DataTemplate x:DataType="local:Fruit">
<TextBlock Text="{x:Bind price}"/>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
Code behind:
public sealed partial class MainPage : Page
{
public ObservableCollection<Fruit> Fruits{get;set;}
public MainPage()
{
this.InitializeComponent();
Fruits = new ObservableCollection<Fruit>()
{
new Fruit(){name="apple",price=12},
new Fruit(){name="peach",price=15},
new Fruit(){name="pear",price=8},
new Fruit(){name="banana",price=31},
new Fruit(){name="grape",price=5}
};
}
}
public class Fruit: IFruit
{
public string name { get; set;}
}
public abstract class IFruit
{
public int price { get; set;}
}