Sort by column header causes error on every other use

PaoloValladolid

I can click a column to sort without any errors. When I click the same column again I get this message:

Line: 1725
Error: 'aoData[...]._aData' is null or not an object

According to the Internet Explorer javascript debugger, the error seems to occur within this block of code in the jquery.dataTables.js file:

this.fnGetData = function( mRow )
{
var oSettings = _fnSettingsFromNode( this[_oExt.iApiIndex] );

if ( typeof mRow != 'undefined' )
{
var iRow = (typeof mRow == 'object') ?
_fnNodeToDataIndex(oSettings, mRow) : mRow;
return oSettings.aoData[iRow]._aData; //<-- ERROR at Line 1725
}
return _fnGetDataMaster( oSettings );
};

Is there a workaround? The data was loaded from the database using JSTL tags to output data into the table.

PaoloValladolid

I tried simplifying the Datatable content in the following manner. There should be nothing in the data to cause the error - it's just a row of 1s, followed by a row of 2s, etc.:

[code]




${status.count}
${status.count}
${status.count}
${status.count}
${status.count}
${status.count}
${status.count}
${status.count}
${status.count}
${status.count}
${status.count}
${status.count}
${status.count}
${status.count}
${status.count}
${status.count}



[/code]

I also double-checked that the number of columns in matches the number of headers in

Here is the table configuration:

[code]
var searchResultTable;

$(document).ready(function() {
/* Add a click handler to the rows - display package number and description below */
$('#searchResultTable tr').click( function() {
if ( $(this).hasClass('row_selected') ){
$(this).removeClass('row_selected');
document.getElementById('detail_0').value="";
document.getElementById('detail_1').value="";
var numRows = searchResultTable.fnGetData().length;
for (var i=0; i < numRows; i++) {
var node = searchResultTable.fnGetNodes(i);
if ($(node).hasClass('row_selected')) {
var aPos1 = searchResultTable.fnGetPosition(node);
var aData1 = searchResultTable.fnGetData(aPos1);
document.getElementById('detail_0').value = aData1[15];
var packageDescription = aData[14].replace(/&/g,'&');
document.getElementById('detail_1').value = packageDescription;
}
}
}
else {
$(this).addClass('row_selected');
var aPos = searchResultTable.fnGetPosition(this);
var aData = searchResultTable.fnGetData(aPos);
document.getElementById('detail_0').value = aData[15];
var packageDescription = aData[14].replace(/&/g,'&');
document.getElementById('detail_1').value = packageDescription;
}
} );


searchResultTable =
$('#searchResultTable').dataTable( {
"bProcessing": true,
"sPaginationType": "full_numbers",
"bFilter": false,
"aoColumnDefs": [
{ "bVisible": false, "aTargets": [ 13, 14, 15 ] }
]
} );
} );
[/code]

PaoloValladolid

The problem was in the click handler code, caused by aPos being null. Adding lines such as the following eliminated the error:


[code]
var aPos1 = searchResultTable.fnGetPosition(node);
if (aPos1 == null) {
return;
}
[/code]