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jQuery Set Select Index

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无人共我
无人共我 2020-11-27 09:52

I have an select box:
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  • 孤城傲影
    2020-11-27 10:18

    Try this:

    $('select#mySelect').prop('selectedIndex', optionIndex);

    Eventually, trigger a .change event :

    $('select#mySelect').prop('selectedIndex', optionIndex).change();
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  • 北海茫月
    2020-11-27 10:18

    select 3rd option

    $('#selectBox').val($('#selectBox option').eq(2).val());

    Example on jsfiddle

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  • 情歌与酒
    2020-11-27 10:19 
    //funcion para seleccionar por el text del select
var text = '';
var canal = ($("#name_canal").val()).split(' ');
$('#id_empresa option').each(function(i, option) {
        text = $('#id_empresa option:eq('+i+')').text();
        if(text.toLowerCase() == canal[0].toLowerCase()){
            $('#id_empresa option:eq('+i+')').attr('selected', true);
        }
    });
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  • 野的像风
    2020-11-27 10:19

    Shortly:

    $("#selectBox").attr("selectedIndex",index)

    where index is the selected index as integer.

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  • [愿得一人]
    2020-11-27 10:20

    This may also be useful, so I thought I'd add it here.

    If you would like to select a value based on the item's value and not the index of that item then you can do the following:

    Your select list:

    <select id="selectBox">
    <option value="A">Number 0</option>
    <option value="B">Number 1</option>
    <option value="C">Number 2</option>
    <option value="D">Number 3</option>
    <option value="E">Number 4</option>
    <option value="F">Number 5</option>
    <option value="G">Number 6</option>
    <option value="H">Number 7</option>
</select>

    The jquery:

    $('#selectBox option[value=C]').attr('selected', 'selected');


    $('#selectBox option[value=C]').prop('selected', true);

    The selected item would be "Number 2" now.

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