How to reference a generic type in the DataType attribute of a DataTemplate?

Question

I have a ViewModel defined like this:

public class LocationTreeViewModel : 
    ObservableCollection, INotifyPropertyChanged
               


        

Answer 1

The only way i could do this is to use MarkupExtensions.

public class GenericType : MarkupExtension
{
     private readonly Type _of;
     public GenericType(Type of)
     {
         _of = of;
     }
     public override object ProvideValue(IServiceProvider serviceProvider)
     {
         return typeof(LocationTreeViewModel<>).MakeGenericType(_of);
     }
}

And to use it i just need to do this: