Answers

• allan Posts: 61,972Questions: 1Answers: 10,160 Site admin

  October 2017 edited October 2017 Answer ✓

  Yes - you could use the user-select event to cancel the addition of rows if two are already selected.

  Allan
• Andreas S. Posts: 207Questions: 73Answers: 4

  October 2017

  I have used the code at the end to activate the button. Is with the 'user-select' event possible to activate and deactivated the button. I think so, but what is the different between both events. I did not found the description about the 'select' event.

  This opens another problem for me. How get the data of the selected rows. I tried in the action of the Button to get the data of both selected rows, but only I get an error. With a single row I get the data.

  Andreas

  rlist.on(
      'select', function () {
        var selectedRows = rlist.rows( { selected: true } ).count();
        rlist.button( 0 ).enable( selectedRows === 2 );
      }
    );
  

  buttons: [
        {
          text: '<i class="fa fa-code-fork"></i>',
          titleAttr: 'Merge Entries',
          className: 'txt-BlueViolet',
          action: function ( e, dt, node, config ) {
            var data = rlist.row( { selected: true } ).data();
            $.post({
              url: '/wp-content/plugins/finswim-cup-tools/admin/fsct-server-processing.php?m=1',
              data: data
            })
          },
          enabled: false
        }
  
• allan Posts: 61,972Questions: 1Answers: 10,160 Site admin

  October 2017 Answer ✓

  The user-select event should only be used to cancel selection if your logic requires that. You should use select to know when a row has actually been selected (i.e. it has been allowed by user-select or has been triggered via the API).

  How get the data of the selected rows.

  rlist.rows( { selected: true } ).data()
  

  would get the data. If that doesn't work, I'd need a link to a test case showing the issue. Also note that you would need to use toArray() to get a plain array of data if you are sending that via Ajax rather than a DataTables object.

  Allan