https://documentation.devexpress.com/#AspNet/CustomDocument3747
https://documentation.devexpress.com/#AspNet/CustomDocument4609
https://documentation.devexpress.com/#AspNet/CustomDocument4609
DEV-aspxgridview中的editform中上传的方法
原文：http://www.cnblogs.com/sizhizhiyue/p/4642399.html