WPF ListBox showing object property using DataTemplate

Question

I have two implementation of an interface, that is wrapped in another class. It looks like this:

public interface IMyInterface{
    string someProperty
}

public class MyClass1 : IMyInterface{
    string someProperty
}
public class MyClass2 : IMyInterface{
     string someProperty
}

   public class Wrapper{
       public IMyInterface MyObject {get;}

       public Wrapper(IMyInterface imi){
           MyObject = imi;
       }

       public bool SomeOtherProperty {get; }
   }

Now I have a ObservableCollection<Wrapper> Wrappers, that I'm gonna use as ItemSource in ListBox. But I want to create DataTemplate based on the type of Wrapper.MyObject. Is there any way to achieve that?

Answer 1

you can define (in ItemsControl Resources) a DataTemplate for each type. ContentControl in ItemTemplate should pick correct template.

<ItemsControl ItemsSource="{Binding Wrappers}">
    <ItemsControl.Resources>
        <DataTemplate DataType="{x:Type vm:MyClass1}">

        </DataTemplate>

        <DataTemplate DataType="{x:Type vm:MyClass2}">

        </DataTemplate>                    
    </ItemsControl.Resources>

    <ItemsControl.ItemTemplate>
        <DataTemplate>
             <ContentControl Content="{Binding MyObject}"/>
        </DataTemplate> 
    </ItemsControl.ItemTemplate>
</ItemsControl>