The drafting view is not associated with the model. It allows the user to create detail drawings that are not included in the model.
Use the Autodesk.Revit.Creation.NewViewDrafting() method to create a drafting view. Model elements are not displayed in the drafting view.
The ImageView class is derived from ViewDrafting. It can be used to create rendering views containing images imported from disk. Use the static ImageView.Create() method to create new rendering views.