A grid with row-level selection (and row-level navigation)
Use Ctrl/Cmd+A to test keyboard select-all with different selectionModes
Set selectionMode:
A grid with cell-level selection (default selection mode of "extended")
A grid with cell-level selection and selection mode of "single"
A grid with cell-level selection and selection mode of "multiple"
A grid with cell-level selection and selection mode of "none" initially
Use Ctrl/Cmd+A to test keyboard select-all with different selectionModes
Set selectionMode:
A grid with row-level selection and cell-level navigation