How do I update input element attribute with selected value from drop down on change event ?

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How do i update data-reason attribute with selected value from drop down in my input element?

<table class='reorderTablerow'>
<tbody>
<tr>
<td>
<input data-item='item A' data-itemid='001' data-reason='' class='quanityborderinput' type=text/>
</td>
<td>
<select>
<option>Select reason</option>
<option>Out of stock</option>
<option>Damaged item</option>
</select>
</td>
</tr>
<tr>
<td>
<input data-item='item B' data-itemid='002' data-reason='' class='quanityborderinput' type=text/>
</td>
<td>
<select>
<option>Select reason</option>
<option>Out of stock</option>
<option>Damaged item</option>
</select>
</td>
</tr>
</tbody>
</table>

What I have tried:

so far my code jquery code is

Part of jQuery 
    var orderformcontainer = $(this).parent().parent();
    var timestamp = moment();
    var OrderFormType = $(this).attr("data-orderformtype");
    var quanityinputboxes=orderformcontainer.parent().find("tbody .quanityborderinput");

    var items = quanityinputboxes.filter(function (index) {
        return $(this).val().length > 0;
    });

    var orderitems = [];
    items.each(function (index, element) {
        var itemid = $(element).attr("data-itemid");
        var quantity = $(element).val();
        var name = $(element).attr("data-itemname");
		});

Posted 23-Jan-18 4:41am

istudent

Updated 23-Jan-18 5:15am

v2

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Comments

Karthik_Mahalingam 23-Jan-18 11:04am

The Html table and Javascript code has no relation.
where is the button ?
what does "this" denotes?

do you want to update the textbox attribute on the same row when select box is changed?

istudent 23-Jan-18 11:06am

There is a button on top. Right now I just need to pass the value selected from each selected list to its input element data-reason attribute.

istudent 23-Jan-18 11:23am

Thank you sir.

Karthik_Mahalingam 23-Jan-18 11:25am

welcome

istudent 25-Jan-18 14:36pm

Sir I ran into an issue here.

istudent 25-Jan-18 14:51pm

In above example there is one more td element as in below which has label name for that row. code is working fine but before ajax call.
On success, it adds div element inside first td Now after ajax return, when i select the dropdown element, it does not get selected.
It does not even call the function.

Karthik_Mahalingam 26-Jan-18 2:52am

can you show the code.

Karthik_Mahalingam 26-Jan-18 2:52am

post the markup

istudent 25-Jan-18 16:38pm

this denotes button.

istudent 25-Jan-18 16:43pm

'this' denote the button, and
yes I want to somehow include the selected option in

var orderitems = [];
items.each(function (index, element) {
var itemid = $(element).attr("data-itemid");
var quantity = $(element).val();
var name = $(element).attr("data-itemname");
var reason = });
orderitems[index] = { ItemID: itemid, Quantity: quantity, Name: name, OrderReason: reason };

istudent 25-Jan-18 17:42pm

Sir, I did a little change. $(document).on('change', '.myClass'.function(a,b){});

Like this way.. it worked. Thank you one more time sir

Richard Deeming 23-Jan-18 13:56pm

jQuery has a dedicated API for reading and updating data- attributes:
https://api.jquery.com/data/[^]

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Karthik_Mahalingam · Accepted Answer · 2018-01-23T05:15:00

Solution 1

try

$(function () {

        $('.reorderTablerow tr select').change(function (a, b) {
            var value = a.target.value;
            var row = a.target.parentElement.parentElement; 
            $('.quanityborderinput', row).attr('data-reason', value); 
        });

    });

Posted 23-Jan-18 5:15am

Karthik_Mahalingam