select2 清除选中项解决办法

在项目中使用select2：选中项 设置可清除。

代码中加上了allowClear : true

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

$.get("/Work/Ajax/Select.ashx", function (data) {                         var aData = [];                         var str = JSON.stringify(data.rows);                         pInfo = JSON.parse(str);                         for (var i = 0; i < pInfo.length; i++) {                             aData.push({ text: pInfo[i].League_Name, id: pInfo[i].League_ID });                           }                           var $selObj = $('#league_Name').select2({                             data: aData,                             width: 260,                             allowClear: true, //选中项可清空                             placeholder: '请选择',                             templateSelection: function (item) {                                                               return item.text;                             }                         });                         $selObj.val($("#league_ID").val()).trigger("change");                     });

 数据加载之后。默认会选中第一项。
解决办法：select里面加上一个空的选项，如：

?

1 2	<select id="league_Name" class="form-control" name="league_Name"  style=" " ><option value=""></option></select>  <input id="league_ID" type="hidden" value="0"  runat="server" />