JQuery Bootstrap Multiselect plugin - Set a value as selected in the multiselect dropdown

问题

I am having a multiselect dropdown using the Boostrap Multiselect plugin (http://davidstutz.de/bootstrap-multiselect/) as below

<select id=\"data\" name=\"data\" class=\"data\" multiple=\"multiple\">
  <option value=\"100\">foo</option>
  <option value=\"101\">bar</option>
  <option value=\"102\">bat</option>
  <option value=\"103\">baz</option>
</select>

On load of page, i will get an array of value like [101,102]. I should iterate through the array and make the values selected(check boxes corresponding to the ids should be checked). Please help.

回答1:

//Do it simple

var data="1,2,3,4";

//Make an array

var dataarray=data.split(",");

// Set the value

$("#multiselectbox").val(dataarray);

// Then refresh

$("#multiselectbox").multiselect("refresh");

回答2:

Thank you all for your answers.

Taking all of your answers as a guideline, I resolved the problem with the below code:

var valArr = [101,102];
i = 0, size = valArr.length;
for(i; i < size; i++){
  $("#data").multiselect("widget").find(":checkbox[value='"+valArr[i]+"']").attr("checked","checked");
  $("#data option[value='" + valArr[i] + "']").attr("selected", 1);
  $("#data").multiselect("refresh");
}

Thanks once again for all your support.

回答3:

It's supposed to be as simple as this:

<select id='multipleSelect' multiple='multiple'>
  <option value="1">1</option>
  <option value="2">2</option>
  <option value="3">3</option>
</select>
<script type='text/javascript'>
    $('#multipleSelect').val(['1', '2']);
</script>

Check my Fiddle: https://jsfiddle.net/luthrayatin/jaLygLzo/

回答4:

var valArr = [101,102], // array of option values
    i = 0, size = valArr.length, // index and array size declared here to avoid overhead
    $options = $('#data option'); // options cached here to avoid overhead of fetching inside loop

// run the loop only for the given values
for(i; i < size; i++){
    // filter the options with the specific value and select them
    $options.filter('[value="'+valArr[i]+'"]').prop('selected', true);
}

Here is a demo

回答5:

work fine for me ,change ids according to you requirement.

$("#FormId select#status_id_new").val('');
 $("#FormId select#status_id_new").multiselect("refresh");

回答6:

that code should help:

var selected=[101,103];
var obj=$('#data');
for (var i in selected) {
    var val=selected[i];
    console.log(val);
   obj.find('option:[value='+val+']').attr('selected',1);
}

回答7:

from a php array into the multiselect...

$PHP_array=array();           // create array anyway you need to in PHP
array_push($PHP_array,20);    // Single ID values
array_push($PHP_array,22);

$javascript_str = json_encode($PHP_array);   // JSON ENCODE        

// then in the JS script

$("#multiselectbox").val(<?php echo $javascript_str; ?>);

// Then refresh

$("#multiselectbox").multiselect("refresh");

回答8:

 var valArr = ["1","2","3"];

/* Below Code Matches current object's (i.e. option) value with the array values */
 /* Returns -1 if match not found */
 $("select").multiselect("widget").find(":checkbox").each(function(){
    if(jQuery.inArray(this.value, valArr) !=-1)
            this.click();

   });

This selects the options whose value matches with values in array.

回答9:

The official site has mentioned (in "Manually check or uncheck a checkbox?" section) just to use click()

e.g.

$("#ddl_singleSelect")
    .multiselect("widget")
        .find(":radio[value='']").click();  // change displayed selectedText
$("#ddl_singleSelect option[value='']")
    .prop("selected", true)             // change val()
    .trigger("change");                 // fire change event


$("#ddl_multiselect").multiselect("uncheckAll");    // init by de-selecting all
$("#ddl_multiselect")
    .multiselect("widget")
        .find(     ":checkbox[value='1']"
                + ",:checkbox[value='2']"
                + ",:checkbox[value='3']"
                + ",:checkbox[value='4']"
            ).click();  // change displayed selecetdText
$("#ddl_multiselect")
    .find(     "option[value='1']"
            + ",option[value='2']"
            + ",option[value='3']"
            + ",option[value='4']"
        ).prop("selected", true);   // change val()
$("#ddl_multiselect").trigger("change");    // fire change event

OR by HTML

<select name="example-presets" multiple="multiple" size="5">
    <option value="option1" selected="selected">Option 1</option>
    <option value="option2">Option 2</option>
    <option value="option3" selected="selected">Option 3</option>
    <option value="option4" selected="selected">Option 4</option>
    <option value="option5" disabled="disabled">Option 5</option>
    <option value="option6" disabled="disabled">Option 6</option>
    <option value="option7">Option 7</option>
    <option value="option8">Option 8</option>
    <option value="option9">Option 9</option>
</select>
....
<script type="text/javascript">$("select").multiselect();</script>

回答10:

I got a better solution from jquery-multiselect documentation.

var data = [101,102];

$("#data").multiSelect('deselect_all');

$("#data").multiSelect("select",data);

回答11:

$("#dropDownId").val(["130860","130858"]);
$("#dropDownId").selectmenu('refresh');

回答12:

this is my code sample. I have comma separated numbers for multi select drop down and want to select options multiple options from comma separated values.

var selected_tags_arr = new Array();
var selected_tags = 1,2,4;
selected_tags_arr = selected_tags.split(",");
$('#contact_tags option').each(function (){
    var option_val = this.value;
    for (var i in selected_tags_arr) {
        if(selected_tags_arr[i] == option_val){
            $("#contact_tags option[value='" + this.value + "']").attr("selected", 1);
        }
    }
});

回答13:

This is what worked from me using an array as input. First uncheck all options, then click on the chosen options using jquery

var dimensions = ["Dates","Campaigns","Placements"];

$(".input-dimensions").multiselect("uncheckAll");

for( var dim in dimensions) {
  $(".input-dimensions").multiselect("widget")
    .find(":checkbox[value='" + dimensions[dim] + "']").click();
}

回答14:

I ended up having to make a slight change using the click event on the input element by also setting the checked prop after firing the click event.

$(y.Ctrl).multiselect("widget").find(":checkbox").each(function () {
    if ($.inArray(this.value, uniqueVals) != -1) {
        $(this).click();
        $(this).prop('checked', true);
    }
});

回答15:

I hope these functions will help you.

$('#your-select').multiSelect('select', String|Array);

$('#your-select').multiSelect('deselect', String|Array);

$('#your-select').multiSelect('select_all');

$('#your-select').multiSelect('deselect_all');

$('#your-select').multiSelect('refresh');

Reference by this site Reference

回答16:

You can try this:

$( "#data" ).val([ "100", "101" ]);

来源：https://stackoverflow.com/questions/6966260/jquery-bootstrap-multiselect-plugin-set-a-value-as-selected-in-the-multiselect