Accessing a nested type from xaml

Sometimes you need to access a nested type from XAML, for example when declaring a DataTemplate. The usual C# syntax MyClass.MyNestedClass does not work. Instead, you must use the .NET notation with a +:

public class MyClass
{
    public class MyInnerClass
    {
    }
}

<DataTemplate DataType="{x:Type myns:MyClass+MyInnerClass}" />

As a sign of how uncommon this is, Visual Studio's syntax highlighting does not handle this syntax well.

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