Easyui combobox在获取数据后，添加一条全部的选项

Easyui combobox在获取数据后，添加一条全部的选项

data.unshift({text:"全部",value:"0",selected:"true"});//插到最前面

//alist.push({text:"全部",value:"0",selected:"true"});//添加到最后面

$("#Area").combobox('loadData',data);

loadFilter function(data) Return the filtered data to display. Available since version 1.3.3.

 loadFilter:function(data){return [{text:'全部',id:-1}].concat(data)}