This sample shows you a few members that allow to expand and collapse master rows. Keyboard presses are processed to allow the CTRL+* shortcut to toggle the currently focused master row's state. There are also two buttons - one allowing to expand all master rows, and another that collapses details for all but the focused row.
Question Comments
Added By: Itamar Shoham at: 4/16/2015 4:32:00 AM
notice, you must specifically write 'SelectionMode="None"' for both grids (Master & Detail).
otherwise you'll get 'multiple row and cell selection is not supported in master-detail mode' *runtime* error.
(at least from my experience with 13.1.7.0)