{
                         xtype: 'textfield',
                         id: 'imgFileEidt',
                         name: 'imgFileEidt',
                         inputType: "file",
                         labelWidth: 60,
                         fieldLabel: '上傳照片',
                         regex: '',//圖片驗證正則表示式
                         listeners: {
                             'change': function () {
                             }
                         },
                         msgTarget: 'under',
                         validator: function (value) {
                             var panduan = value.split('.');
                             if (panduan[panduan.length - 1] == 'jpg') {
                                 return true;
                             }
                             else {
                                 return "上傳檔案必須是jpg, jpeg型別檔案中的一種！";

                             }

}

｝