Currently, Generating Sample Data whilst inside of a DataTemplate can result in the adorners of the Elements within, to become misaligned with the visual rendered on-Stage.

See attached video.

Repro Steps:

1) Open the Ombra sample from the InternalProjects GitHub.

2) Enter the Component named 'Component_Character_Selector' (quickest way to access is to simply double-click on the character grid found on MainPage.xaml)

3) Within the Component, right-click on the ListBox on Stage, and from its context menu, under the 'Templates' section, edit the ListBoxItem's Template.

4) Inside of the ListBoxItem Template, select any of its Elements on-Stage or from the Navigator.
At this point, a blue adorner frame should be visible on-Stage.

5) Without leaving the ListBoxItem Template, navigate to the Data Panel, and expand the 'Screen_ViewModel' ViewModel.

6) Hover over the 'CharacterData' DataSet, and click on the 'Generate Sample Data' button that appears.

Observe how the blue adorners on-Stage shift to the upper-left of the Stage, whilst the rendered visuals of the character tile stay in-place.

7) Zoom in and out, and pan the Stage around.

Observe how the blue Element adorners stay put in the upper-left, whilst the rendered visuals of the character tile move around.

Expected Results: Generating Sample Data doesn't cause a misalignment of Element adorners relative to the visuals on-Stage rendered.