Pete Ravenscroft Pete Ravenscroft - 7 months ago 25
Javascript Question

Jquery select change not firing

I need to capture when a select box changes, should be simple!

$('#multiid').change(function(){
alert('Change Happened');
});


But it does not work, I suspected the problem is that the select box does not exist on document ready it is created only if needed, so I created it empty in HTML, populated it with code as a test but that didn't work either.

function buildmulti(id,name,price) {
// build action items for action bar
var optlist = $('<select></select>').attr('id', 'multiid').attr('name', 'multiid');
optlist.append('<option value="0">Select Size</option>');
$.each(option, function(index, val) {
if(val.prodID *1 == id * 1) {
v = val.ID;
fprice = price * 1 + val.pricechange * 1;
t = name + ' - ' + val.variation + ' - ' + currency + (fprice).toFixed(2);
optlist.append('<option value="' + v + '">' + t + '</option>');
}
})
$('#addbasket').append(optlist);
};


it's probably another bracket out of place, but I can't find it!

Answer

Try

 $(document).on('change','#multiid',function(){
    alert('Change Happened');
});

As your select-box is generated from the code, so you have to use event delegation, where in place of $(document) you can have closest parent element.

Or

$(document.body).on('change','#multiid',function(){
    alert('Change Happened');
});

Update:

Second one works fine, there is another change of selector to make it work.

$('#addbasket').on('change','#multiid',function(){
    alert('Change Happened');
});

Ideally we should use $("#addbasket") as it's the closest parent element [As i have mentioned above].

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