jquery select2 - 选择带有输入文本字符串的所有选项

Question

What i'm trying to achieve here is I have a text input, and when I type in a string for example "HELP" - I want all the option texts that are "HELP" to be auto-selected in the list.

Sorry I should mention im using the select2 plugin for jquery

example-->

html:

<select id="select2" name="select2" multiple class="select2" style="width: 300px;">
<option value="1">ABC</option>
<option value="2">BPS</option>
<option value="3">BPS</option>
<option value="4">HELP</option>
<option value="5">HELP</option>
<option value="6">EX</option>
<option value="7">HELP</option>    
</select>

<br /><br />

<input type="button" name="Button" id="selectspecify" value="Select String" />&nbsp;
<input size="50" name="selectstring" id="selectstring" value="" placeholder="Type in an option name">

jquery:

$('#selectspecify').click(function() {
    var selectstring = $('#selectstring').val();

    $('#select2\\[\\] option:contains(' + selectstring + '))').select2('destroy').find('option').prop('selected', 'selected').end().select2() 

});

$(".select2").select2();

Can someone help me with this please?

I've made a jsfiddle to show what i'm trying todo: http://jsfiddle.net/3ZhWu/2/ But it obviously doesn't work yet.

Answer 1

Try this:

$('#selectspecify').click(function() {
    var selectstring = $('#selectstring').val();
    var stringVal = [];
    $('#select2').find('option').each(function(){
        if($(this).is(':contains(' + selectstring + ')')){
                  stringVal.push($(this).val());
        }
        $('#select2').val(stringVal).trigger("change");
    });
});

$(".select2").select2();

Ref: http://ivaynberg.github.io/select2/

DEMO

Answer 2

$('#selectspecify').click(function() {
    $('#select2').select2("val", $('#select2 option:contains(' + selectstring + ')')
    .map(function(){
        return $(this).val();
    }).get());
});

Try: http://jsfiddle.net/L4ob780b/2/

Answer 3

$( "option:contains('Help')" );

参考

Answer 4

Try this...

$('#selectspecify').click(function() {
    var selectstring = $('#selectstring').val().toLowerCase();

$('#select2 option').each(function() {

    var inval = $(this).html().toLowerCase();
    console.log(inval);
    if(inval.indexOf(selectstring) != -1) {

        $(this).prop('selected',true);
    }
});
});

This one actually checks for substring. so even if you give 'h'. It will select the options. If you want exactly same string use an equality check.