Implement first drag 'n' drop implementation
Reorganize Drag 'n' Drop
ObjectReferenceViewModel starts supporting drag 'n' drop for derived classes now, StaticFilePropertyViewModel implements it
Attach to preview handler to catch drag 'n' drop events early
Drag 'n' Drop Objects within zetbox
DragDropSupport.cs not needed
"improve" error handling
extending WpfDragDropHelper
Drag'n'Drop support for any reference
Reduce whitespace noise
Drag'n'Drop support for WorkspaceDisplay