Answers

• allan Posts: 63,498Questions: 1Answers: 10,471 Site admin

  October 2020

  You'll need to use rowGroup.startRender for this - it gives you the number of rows in the group, so you could add a class if that is greater than 1 - e.g.

  $('#myTable').DataTable( {
      rowGroup: {
          startRender: function ( rows, group ) {
              if (rows.count() > 1) {
                  $(rows.nodes()).addClass('many');
              }
              return group +' ('+rows.count()+' rows)';
          }
      }
  } );
  

  Allan