xm-select 获取选选择的值

        var cheng = xmSelect.render({
            el: '#cheng_xm_select_id',
            data: [
                <?php foreach($cheng_user_list as $v){ ?>

                    <?php if($v['is_sign'] == 1){ ?>
                        <?php echo '{name:"'.$v['part_name'] . '-' . $v['position_name'] . '-' . $v['name'] .'",value:'.$v['id'].',selected:true},'; ?>
                    <?php }else{ ?>
                        <?php echo '{name:"'.$v['part_name'] . '-' . $v['position_name'] . '-' . $v['name'] .'",value:'.$v['id'].'},'; ?>
                    <?php } ?>

                <?php } ?>
            ]
        });

•         var cheng_val = cheng.getValue('valueStr'); 获取字符串类型值