Get updated value from input field

Get updated value from input field

kevintivolikevintivoli Posts: 11Questions: 3Answers: 0

Hello Team,

I have columns defined like this.

I'm trying to retrieve the updated value on the 'qty' filed when it is updated.

columns: [{ data: 'idnum' },
{ data: 'productid' }, 
{ data: 'qty', "defaultContent": '<input type="number" id="qtybtn" value="0" min="0" max="100" step="1"/>', attr: {type: "number"}}
],

I have tried a few things as below but it always gives me the first rows values.

    $(document).ready(function () {
        var table = $('#wscarttable').DataTable();

        $('#wscarttable tbody').on('click', '#qtybtn', function () {

            console.log(table.$('#qtybtn').val());

            console.log(document.getElementById("qtybtn").value)
        });
    });

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Answers

  • colincolin Posts: 8,661Questions: 0Answers: 1,449

    One problem is this:

    id="qtybtn"
    

    ids should be unique on the page - for you, every record would have a cell with the same id, which isn't valid HTML.

    If that doesn't help, we're happy to take a look, but as per the forum rules, please link to a test case - a test case that replicates the issue will ensure you'll get a quick and accurate response. Information on how to create a test case (if you aren't able to link to the page you are working on) is available here.

    Cheers,

    Colin

  • kevintivolikevintivoli Posts: 11Questions: 3Answers: 0
    edited May 25

    Thank your for your response @colin

    I removed id="qtybtn"

    Here is a sample test case demonstrating the scenario.

    The issue is, i am unable to retrieve the the input field 'qty' at all.

    What i need is, get all table data including the current/updated value of 'qty' input field.

    Thanks.

  • colincolin Posts: 8,661Questions: 0Answers: 1,449
    Answer ✓

    Yep, you need to get the node of the cell, and then the val() of the input element - see here.

    Colin

  • kevintivolikevintivoli Posts: 11Questions: 3Answers: 0

    @colin , Excellent !! That did the trick. Thank you very much !!

    I have one last follow up question to my initial requirement of having an event, either click or change in the input field.

    I basically want to update a another column in the table when the value in the input field changes.

    Here is a test case demonstration which is not working.

    Thanks

  • kthorngrenkthorngren Posts: 8,931Questions: 25Answers: 2,040
    edited May 27 Answer ✓

    You are getting this error:

    Uncaught TypeError: this.index is not a function

    this is the tbody element which does not have .index() as a function and is not useable as a row-selector. Change the keyup event selector to $("#example tbody tr") and the value of this will be the tr which can be used as the selector. Here is the updated example:
    http://live.datatables.net/gobigupa/3/edit

    Kevin

  • kevintivolikevintivoli Posts: 11Questions: 3Answers: 0

    @kthorngren That worked perfectly !! Thank you so much for the explanation and the example.

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