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Thank you :D, that will be what I am looking for, it would be better if you could simply supply an integer but I'm sure that will come in the future, I will have a poke around and see what I can do for it :) thanks again :D

Great thanks for letting me know that was the issue. When I update TableTools, I'll add in a fix for that. Allan

Do you have border-collapse: collapse set in the CSS for the table. If so, remove it - it makes column width calculations simply impossible :-(. Allan

A forum search would find the answer. http://legacy.datatables.net/usage/columns#iDataSort

You would need to rerun whatever code you have attaching them at the moment. If you are referring to the DataTables event listeners, then you will need to disassemble DataTables almost entirely. It just wasn't designed to do what you are looking for there. Allan

Thank you!

Yes Allan, it works, for my case. :-) The warning no longer pops up after I implemented it.

I'm having the same exact issue. What gives?

my code for data table is $(document).ready(function(){ var t = $('#contractList').dataTable( { "sDom": 'T<"clear">lfrtip', "oTableTools": { "sSwfPath": "${resource(dir: 'swf', file: 'copy_csv_xls_pdf.swf')}", "aButtons": [ { "sExtends":"xls", "mColumns":[0,1,2,3,4] }, { "sExtends": "print", "sMessage": "Contract List Enlistment" } ] } }); }) Now i need to format the excel file with column width auto according to content, can anybody help me???

Full code $("#resultstab").dataTable({""bProcessing": true, "bPaginate": true, "bLengthChange": true, "bFilter": false,"bSort": true, "bInfo": true, "bAutoWidth": false, "sPaginationType": "full_numbers", "fnDrawCallback": function() { $('th').each(function(){ if (($(this).hasClass('sorting')) || ($(this).hasClass('sorting_desc'))) { $(this).attr({title: 'Sort Ascending'});} else { $(this).attr({title: 'Sort Descending'}); } }); }});