Selecting a data template based on type

Question

I\'ve declared the following types:

public interface ITest { }
public class ClassOne : ITest { }
public class ClassTwo : ITest { }

In my vi

Answer 1

Your issue might be caused by finnicky workings of XAML. Specifically, you need to pass Type to DataType, but you were passing a string with the name of the type.

Use x:Type to decorate the value of DataType, like so:

<ItemsControl ItemsSource="{Binding Coll}">
    <ItemsControl.Resources>
        <DataTemplate DataType="{x:Type local:ClassOne}">
            <Rectangle Width="50" Height="50" Fill="Red" />
        </DataTemplate>
        <DataTemplate DataType="{x:Type local:ClassTwo}">
            <Rectangle Width="50" Height="50" Fill="Blue" />
        </DataTemplate>
    </ItemsControl.Resources>
</ItemsControl>