isInvalidCellPosition method
Implementation
@override
bool isInvalidCellPosition(PlutoGridCellPosition? cellPosition) {
return cellPosition == null ||
cellPosition.columnIdx == null ||
cellPosition.rowIdx == null ||
cellPosition.columnIdx! < 0 ||
cellPosition.rowIdx! < 0 ||
cellPosition.columnIdx! > refColumns.length - 1 ||
cellPosition.rowIdx! > refRows.length - 1;
}