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JQuery Select2-すべてのオプションを選択する方法

JQuery select2 multi selectドロップダウンを使用しています。コードからドロップダウンのすべてのオプションを選択する必要があります。基本的に、この機能を実装する必要がある[すべて選択]チェックボックスがあります。このチェックボックスからオプションを選択/選択解除します。

jqueryjquery-select2
31
Ibad

Githubのスレッドに説明があります。引用（ https://github.com/ivaynberg/select2/issues/195#issuecomment-1348914 by MortadaAK ）ctrl + aのすべてを選択できる

$(document).on("keypress",".select2-input",function(event){
    if (event.ctrlKey || event.metaKey) {
        var id =$(this).parents("div[class*='select2-container']").attr("id").replace("s2id_","");
        var element =$("#"+id);
        if (event.which == 97){
            var selected = [];
            element.find("option").each(function(i,e){
                selected[selected.length]=$(e).attr("value");
            });
            element.select2("val", selected);
        } else if (event.which == 100){
            element.select2("val", "");
        }
    }
});
12
Piotr Stapp

select 2を使用[〜＃〜] demo [〜＃〜] （

$("#e1").select2();
$("#checkbox").click(function(){
    if($("#checkbox").is(':checked') ){
        $("#e1 > option").prop("selected","selected");// Select All Options
        $("#e1").trigger("change");// Trigger change to select 2
    }else{
        $("#e1 > option").removeAttr("selected");
        $("#e1").trigger("change");// Trigger change to select 2
     }
});

$("#button").click(function(){
       alert($("#e1").val());
});
<select multiple id="e1" style="width:300px">
        <option value="AL">Alabama</option>
        <option value="Am">Amalapuram</option>
        <option value="An">Anakapalli</option>
        <option value="Ak">Akkayapalem</option>
        <option value="WY">Wyoming</option>
    </select>
<input type="checkbox" id="checkbox" >Select All

<input type="button" id="button" value="check Selected">

コードが必要ですDEMO2に示すように、単純選択

$("#checkbox").click(function(){
    if($("#checkbox").is(':checked') ){
        $("select > option").prop("selected","selected");
    }else{
        $("select > option").removeAttr("selected");
     }
});

$("#button").click(function(){
       alert($("select").val());
});

<select multiple size=2>
  <option value="volvo">Volvo</option>
  <option value="saab">Saab</option>
  <option value="opel">Opel</option>
  <option value="audi">Audi</option>
</select> <input type="checkbox" id="checkbox" >Select All

<input type="button" id="button" value="check Selected">
50
rahul maindargi

here からの回答はかなりうまくいきます。

// Select all
$('#select-id').select2('destroy').find('option').prop('selected', 'selected').end().select2();

// Unselect all
$('#select-id').select2('destroy').find('option').prop('selected', false).end().select2();
9
Alliswell

あなたは1つの文字列に対してそれを行うことができます

$('select.your-select option').attr('selected', true).parent().trigger('change')
7
Vladowski
$(document).ready(function() {
    $("#checkbox").click(function(){
      if($("#checkbox").is(':checked') ){ //select all
        $("#e1").find('option').prop("selected",true);
        $("#e1").trigger('change');
      } else { //deselect all
        $("#e1").find('option').prop("selected",false);
        $("#e1").trigger('change');
      }
  });
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<select multiple id="e1" style="width:300px">
        <option value="AL">Alabama</option>     //AJAX created
        <option value="Am">Amalapuram</option>  //AJAX created
        <option value="An">Anakapalli</option>  //AJAX created
        <option value="Ak">Akkayapalem</option> //AJAX created
        <option value="WY">Wyoming</option>     //AJAX created
    </select>
    <input type="checkbox" id="checkbox" >Select All

AJAX requestの後にオプションが作成された場合、これらのオプションは機能しません。トリガーを変更した後、findおよびselect/unselectでそれらをマッピングします。

HTML

 <select multiple id="e1" style="width:300px">
        <option value="AL">Alabama</option>     //AJAX created
        <option value="Am">Amalapuram</option>  //AJAX created
        <option value="An">Anakapalli</option>  //AJAX created
        <option value="Ak">Akkayapalem</option> //AJAX created
        <option value="WY">Wyoming</option>     //AJAX created
    </select>
    <input type="checkbox" id="checkbox" >Select All

JS

$(document).ready(function() {
    $("#checkbox").click(function(){
      if($("#checkbox").is(':checked') ){ //select all
        $("#e1").find('option').prop("selected",true);
        $("#e1").trigger('change');
      } else { //deselect all
        $("#e1").find('option').prop("selected",false);
        $("#e1").trigger('change');
      }
  });
});

findを使用してください。

5
Riiwo
$('.select2').select2({
  placeholder: 'Press CTRL+A for selecr or unselect all options'
});

$('.select2[multiple]').siblings('.select2-container').append('<span class="select-all"></span>');

$(document).on('click', '.select-all', function (e) {
  selectAllSelect2($(this).siblings('.selection').find('.select2-search__field'));
});

$(document).on("keyup", ".select2-search__field", function (e) {
  var eventObj = window.event ? event : e;
  if (eventObj.keyCode === 65 && eventObj.ctrlKey)
     selectAllSelect2($(this));
});
        
        
function selectAllSelect2(that) {

  var selectAll = true;
  var existUnselected = false;
  var id = that.parents("span[class*='select2-container']").siblings('select[multiple]').attr('id');
  var item = $("#" + id);

  item.find("option").each(function (k, v) {
      if (!$(v).prop('selected')) {
          existUnselected = true;
          return false;
      }
  });

  selectAll = existUnselected ? selectAll : !selectAll;

  item.find("option").prop('selected', selectAll).trigger('change');
}
.select2-container {
  width: 90% !important;
}

.select2-container .select-all {
                position: absolute;
                top: 6px;
                right: 4px;
                width: 20px;
                height: 20px;
                margin: auto;
                display: block;
                background: url('data:image/svg+xml;utf8;base64,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') no-repeat center;
                background-size: contain;
                cursor: pointer;
                z-index: 999999;
        }
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.6-rc.0/js/select2.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.6-rc.0/css/select2.min.css" rel="stylesheet" />

<select class="select2" multiple id="my-select">
<option value="1">Option 1</option>
<option value="2">Option 2</option>
<option value="3">Option 3</option>
<option value="4">Option 4</option>
</select>
4
Mihai Ciobanu

@ Garath ：ajaxを介して読み込まれた結果で動作するように、投稿されたコードを調整しました。こちらにご連絡いただきありがとうございます。

    $(document).on("keypress",".select2-input",function(event){
    if (event.ctrlKey || event.metaKey) {
        var id =$(this).parents("div[class*='select2-container']").attr("id").replace("s2id_","");
        var element =$("#"+id);
        if (event.which == 97){
            var selected = [];
            $('.select2-drop-active').find("ul.select2-results li").each(function(i,e){
                selected.Push($(e).data("select2-data"));
            });
            element.select2("data", selected);
        } else if (event.which == 100){
            element.select2("data", []);
        }
    }
});
1
sieppl

情報：gSiteIDの値は、選択オプションを最初に動的に作成するときに使用される値です。 #selAllSitesはチェックボックスのIDで、＃siteIDは操作する選択リストのIDです。

var gSiteIDs = "8475, 9082, 2387, 1234";

function selectAllSites() 
{
    if($("#selAllSites").is(":Checked")) {
        $("#siteID").select2("val", [gSiteIDs]);                                
    } else {
        $("#siteID").select2("val", []);                                
    }
}
1
Jeff

Select2のすべて選択のカスタム実装 [〜＃〜] demo [〜＃〜]

function RunSelect2(){
  $('#select-id').select2({
     allowClear: true,
     closeOnSelect: false,
  }).on('select2:open', function() {  

    setTimeout(function() {
        $(".select2-results__option .select2-results__group").bind( "click", selectAlllickHandler ); 
    }, 0);

  });
}

RunSelect2();


var selectAlllickHandler = function() {
        $(".select2-results__option .select2-results__group").unbind( "click", selectAlllickHandler );        
  $('#select-id').select2('destroy').find('option').prop('selected', 'selected').end();
  RunSelect2();
};
.select2-results__group
{
  cursor:pointer !important;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.5/js/select2.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.5/css/select2.min.css" rel="stylesheet"/>

<select multiple id='select-id' style="width:300px">
    <optgroup label="select all">
      <option value='1'>1 one</option>
      <option value='2'>2 two</option>
      <option value='3'>3 three</option>
      <option value='4'>4 four</option>
      <option value='5'>5 five</option>
      <option value='6'>6 six</option>
    </optgroup>
</select>
0
yikekas

これはAJAXでうまく機能し、FF（Ctrl-D）でブックマークウィンドウを開くことを防ぎ、closeOnSelectがオフに設定されている場合は正常に機能します。

$(document).on("keypress",".select2-input",function(event){
    if (event.ctrlKey || event.metaKey) {
        var id =$(this).parents("div[class*='select2-container']").attr("id").replace("s2id_","");
        var element =$("#"+id);

        if (event.which == 97){
            var selected = [];
            $('.select2-drop-active').find("ul.select2-results li").each(function(i,e){
                selected.Push($(e).data("select2-data"));
            });
            element.select2("data", selected);
            element.select2("focus");
            event.preventDefault();
        } else if (event.which == 100){
            element.select2("data", []);
            event.preventDefault();
        }
    }
});
0
Maciej Niemir

私が作成したこのjsFiddleを見て、これがあなたが検索したすべての答えであることを確認してください

Select2プロパティを含むSelect2 Multipleドロップダウン

$(".checkbox").click(function(){
    if($(".checkbox").is(':checked') ){
        $(this).parent().find('option').prop("selected","selected");
        $(this).parent().find('option').trigger("change");
        $(this).parent().find('option').click();
        
    }else{
       $(this).parent().find('option').removeAttr("selected","selected");
       $(this).parent().find('option').trigger("change");
     }
});

$("#button").click(function(){
       alert($("select").val());
});

$(document).ready(function() {
                  $('.select2').select2({
                            closeOnSelect: false,
                            allowClear:false
                  });
                });
<div>
<select multiple size=2 class="select2">
  <option value="volvo">Volvo</option>
  <option value="saab">Saab</option>
  <option value="opel">Opel</option>
  <option value="audi">Audi</option>
</select> <input type="checkbox" class="checkbox" >Select All
</div>

<div>
<select multiple size=2 class="select2">
  <option value="volvo">Volvo</option>
  <option value="saab">Saab</option>
  <option value="opel">Opel</option>
  <option value="audi">Audi</option>
</select> <input type="checkbox" class="checkbox" >Select All
</div>
0
codelover