Issue with DependencyProperty binding

Question

I created a small File Browser Control:

Answer 1

Using this:

The FileBrowserControl's DataContext has already been set to itself, therefore you are effectively asking to bind to the SelectedFile where the DataContext is the FileBrowserControl, not the parent ViewModel.

Give your View a name and use an ElementName binding instead.

SelectedFile="{Binding DataContext.SelectedFile, ElementName=element}"