`useUnselectAll`

This hook returns a function that unselects all lines in the current <Datagrid>. Pass the name of the resource as argument.

import { useUnselectAll } from 'react-admin';

const UnselectAllButton = () => {
    const unselectAll = useUnselectAll('posts');
    const handleClick = () => {
        unselectAll();
    }
    return <button onClick={handleClick}>Unselect all</button>;
};