Question

<table>
<tr class="csstablelisttd">
    <td>
    </td>
    <td>
        15
    </td>
</tr>
<tr class="csstablelisttd">
    <td>
    </td>
    <td>
        30
    </td>
</tr>
<tr class="csstablelisttd">
    <td>
    </td>
    <td>
        45
    </td>
</tr>

$(".csstablelisttd").live('mousedown', function(e) {
    lastRow = $(this).closest("tr")[0].rowIndex;
}

How can I get the column index on mouse down of class in jQuery?

Answer 1

To get the index of the column, you may use the index function :

$(".csstablelisttd td").on('mousedown', function (e) {
    var colIndex = $(this).index();
});

DEMONSTRATION

Note that you must have the event detected on the td, not the tr.