type CellSelectionState = CellSelectionRange[];Defined in: features/cell-selection/cellSelectionFeature.types.ts:34
The selected rectangles. The last entry is the active one that shift-extend and drag operate on.
A bare array, matching SortingState and ColumnFiltersState. Drag session state deliberately lives outside this slice as non-reactive instance data, so nothing here is transient and the whole slice is safe to persist.