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juery 实现下拉框多选 jquery-multiselect

效果:

除了jquery,需要引用的样式和js文件:

<link rel="stylesheet" type="text/css" href="../assets/jquery.multiselect.css" /><link rel="stylesheet" type="text/css" href="../assets/style.css" /><link rel="stylesheet" type="text/css" href="../assets/prettify.css" /><link href="../assets/jquery-ui.css" rel="stylesheet" /><script src="../assets/jquery.js"></script><script src="../assets/jquery-ui.min.js"></script><script type="text/javascript" src="../assets/prettify.js"></script><script type="text/javascript" src="../assets/jquery.multiselect.js" charset=gb2312></script>

HTML代码:

 <select title="Basic example" multiple="multiple" name="example-basic" size="5" id="ddlConditions">        <option value="1">Option 1</option>        <option value="2">Option 2</option>        <option value="3">Option 3</option>        <option value="4">Option 4</option>        <option value="5">Option 5</option>        <option value="6">Option 6</option>        <option value="7">Option 7</option>    </select>

默认选中值1,2,3,绑定指定的选项:

  var  strcondition = ‘1,2,3‘;               var ids = strcondition.split(‘,‘);                if (ids != null) {                        $(‘#ddlConditions‘).val(ids);            $(‘#ddlConditions‘).multiselect("refresh");                   }

获取选中的多个值:

首先修改jquery.multiselect.js,添加全局变量multiValues ,用来存放选项值,然后修改update方法,添加multiValues 那一行代码:

update: function() {      var o = this.options;      var $inputs = this.inputs;      var $checked = $inputs.filter(‘:checked‘);      var numChecked = $checked.length;      var value;      if(numChecked === 0) {        value = o.noneSelectedText;      } else {        if($.isFunction(o.selectedText)) {          value = o.selectedText.call(this, numChecked, $inputs.length, $checked.get());        } else if(/\d/.test(o.selectedList) && o.selectedList > 0 && numChecked <= o.selectedList) {          value = $checked.map(function() { return $(this).next().html(); }).get().join(‘, ‘);        } else {          value = o.selectedText.replace(‘#‘, numChecked).replace(‘#‘, $inputs.length);        }        multiValues = $checked.map(function () { return $(this).val(); }).get().join(‘,‘);      }      this._setButtonValue(value);      return value;    },

再添加自定义方法:

 MyValues:function(){        return multiValues;    },

页面使用此自定义方法,获取选中值的代码:

 if ($(‘input[name=multiselect_ddlConditions]:checked‘).length < 1)            alert(‘Please Select Option‘);        else {            var strConditions = $("#ddlConditions").multiselect("MyValues");}

 

juery 实现下拉框多选 jquery-multiselect