data-value doesn't sort if td contents is a <select>

[FrankEBailey]

Hi, I add a data-value attribute to my table cell that contains a dropdown select with supplier names in it, this data-value being the supplier name that's currently selected in the application for that line. When I click on the column header, no sorting happens, even though the asc/desc arrows do change for the column.

[drvic10k]

are you updating the attribute everytime the dropdown value is changed?

[FrankEBailey]

I'm don't expect the table to sort if I've updated the value, just the initial values on page load. No sorting is occurring at all on clicking on the column header. When I click, the column header th, all the row td's get the sorted class, however the table rows aren't getting sorted at all.

A snippet of the relevant cell from one of my table rows:

<td data-value="Studio256 Parts">
<select name="Supplier_1" id="Supplier_1" class="form-control selSupplier" style="padding:2px;">
    <option value="">...</option>
    <option value="-1" >STOCK</option>
    <option  data-supplier="893" data-type="" value="893">AAD Commercial Parts</option>
    <option value="..." >etc ...</option>
</select>
</td>

[FrankEBailey]

Any further ideas on this?