jQuery Datatables Header Misaligned With Vertical Scrolling

Question

I\'ve posted this in the datatables.net forums, but after a week, still no response. Hopefully I can find help here...

I\'m using datatables version 1.8.1 and am ha

Answer 1

I'm having the same problem here. It works fine (pixel-perfect column aligned) in Mozilla Firefox, Opera but not in Chrome 21.

Solution:

Like mentioned in this post http://datatables.net/forums/discussion/3835/width-columns-problem-in-chrome-safari/p1

Basically what is happening, is that DataTables is trying to read the width of the table, that the browser has drawn, so it can make the header match. The problem is that when DataTables does this calculation on your page, the browser hasn't shown the scrollbar - and hence the calculation is slightly wrong! The reason I suggest that it's a Webkit bug, is that, even after DataTables has run through all of it's logic, the scrollbar still hasn't been displayed. If you add the following code you can see the effect of this:

console.log( $(oTable.fnSettings().nTable).outerWidth() ); setTimeout( function () { console.log( $(oTable.fnSettings().nTable).outerWidth() ); }, 1 );

The interesting part is that after I added setTimeout and after it executed there was still one column not aligned. After adding "sScrollX": "100%", "sScrollXInner": "100%" all columns were aligned (pixel-perfect).

Solution for Chrome/Chromium, works ofcource in FF, Opera, IE9:

$(document).ready(function()
{
  var oTable = $('#mytable').dataTable(
  {
    "sScrollY":  ( 0.6 * $(window).height() ),
    "bPaginate": false,
    "bJQueryUI": true,
    "bScrollCollapse": true,
    "bAutoWidth": true,
    "sScrollX": "100%",
    "sScrollXInner": "100%"
  });


  setTimeout(function ()
  {
    oTable.fnAdjustColumnSizing();
  }, 10 );

});