The row type.
True when every row currently on screen is selected.
Deselect everything, including rows on other pages.
The selected rows that are currently loaded.
Whether one id is selected.
Select every row on the current page.
Every selected id, including rows on pages that are not loaded.
True when some, but not all, visible rows are selected.
Select every visible row, or deselect them if all are already selected.
Toggle one row.
What useSelectionModel returns.