void _client_StoreFileAdvancedCompleted(object sender, StoreFileAdvancedCompletedEventArgs e) { //检查WEB服务是否存在错误 if (e.Error != null) { //当错误时放弃上传 _file.State = Constants.FileStates.Error; } else { //如果文件未取消上传的话,则继续上传 if (!_file.IsDeleted) { if (e.Result != null && e.Result.Aid > 0) { //返回了已上传的附件信息,并添加到已上传附件列表中 Page.AttachmentList.Add(e.Result); } UploadAdvanced(); } } }