JQuery操作select中的option

html页面代码如下:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
   <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
   <title></title>
   <style type="text/css">
      * { margin:0; padding:0; }
      div.centent {
                   float:left;
                   text-align: center;
                   margin: 10px;
      }
      span {
             display:block;
             margin:2px 2px;
             padding:4px 10px; 
             background:#898989;
             cursor:pointer;
             font-size:12px;
             color:white;
      }
   </style>
   <!--  引入jQuery -->
   <script src="../jquery/jquery-1.3.1.js" type="text/javascript"></script>
   <script type="text/javascript">
      $(function(){
             //移到右边
             $(‘#add‘).click(function() {
                    //获取选中的选项,删除并追加给对方
                    $(‘#select1 option:selected‘).appendTo(‘#select2‘);
             });
             //移到左边
             $(‘#remove‘).click(function() {
                    $(‘#select2 option:selected‘).appendTo(‘#select1‘);
             });
             //全部移到右边
             $(‘#add_all‘).click(function() {
                    //获取全部的选项,删除并追加给对方
                    $(‘#select1 option‘).appendTo(‘#select2‘);
             });
             //全部移到左边
             $(‘#remove_all‘).click(function() {
                    $(‘#select2 option‘).appendTo(‘#select1‘);
             });
             //双击选项
             $(‘#select1‘).dblclick(function(){     //绑定双击事件
                    //获取全部的选项,删除并追加给对方
                    $("option:selected",this).appendTo(‘#select2‘);     //追加给对方
             });
             //双击选项
             $(‘#select2‘).dblclick(function(){
                    $("option:selected",this).appendTo(‘#select1‘);
             });
      });
   </script>

</head>
<body>
 <div class="centent">
    <select multiple="multiple" id="select1" style="width:100px;height:160px;">
         <option value="1">选项1</option>
         <option value="2">选项2</option>
         <option value="3">选项3</option>
         <option value="4">选项4</option>
         <option value="5">选项5</option>
         <option value="6">选项6</option>
         <option value="7">选项7</option>
    </select>
    <div>
         <span id="add" >选中添加到右边&gt;&gt;</span>
         <span id="add_all" >全部添加到右边&gt;&gt;</span>
    </div>
 </div>

 <div class="centent">
     <select multiple="multiple" id="select2" style="width: 100px;height:160px;">
          <option value="8">选项8</option>
     </select>
     <div>
          <span id="remove">&lt;&lt;选中删除到左边</span>
          <span id="remove_all">&lt;&lt;全部删除到左边</span>
     </div>
 </div>


</body>
</html>

 

 

--------------------------------------------------------------------------------------------------

让指定option值的选项被选中:

<select id="userTypeSub" name="userTypeSub">
     <option value="">全部</option>
     <option value="0">接入号登录</option>
     <option value="1">宽带号登录</option>
</select>

 

$("#userTypeSub").val("1"); 

或者
$(‘select[name="userTypeSub"] option[value="1"]‘).attr("selected", "true");

 

上述代码表示让 宽带号登录 被选中。

 

--------------------------------------------------------------------------------------------------

<script type="text/javascript">
   var j$ = jQuery.noConflict();
 </script>

j$(document).ready(
  function(){
   var date = new Date();
   var preMonth = date.getMonth();

   //让一个月被选中
   j$("select[name=‘month‘] option[value=‘"+preMonth+"‘]").attr("selected", "true");   

  }
 );

 

<select name="month">

    <option value="1">一月</option>

    <option value="2">二月</option>

    <option value="3">三月</option>

</select>

JQuery操作select中的option,古老的榕树,5-wow.com

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