目前只能抓到三次StateChanged。

public override void CustomEvents(CustomEventsArgs e)
        {
            base.CustomEvents(e);
            if (!string.Equals(FieldKey, e.Key, StringComparison.OrdinalIgnoreCase))
                return;
            // 设置上传控件参数
            this.View.GetControl(FieldKey).SetCustomPropertyValue("NeedCallback", true);
            this.View.GetControl(FieldKey).SetCustomPropertyValue("IsRequesting", false);
            if (!string.Equals("FileChanged", e.EventName, StringComparison.OrdinalIgnoreCase))
                return;
            // 文件上传完毕
            var postData = KDObjectConverter.DeserializeObject<JSONObject>(e.EventArgs);
            if (postData == null)
                return;
            var uploadInfo = new JSONArray(postData["NewValue"].ToString());
            if (uploadInfo.Count > 0)
            {
                if (uploadInfo.Count > 3)
                {
                    //实际上文件已经上传到应用服务器对应目录，但是只是不做后续处理，如跟单据关联之类
                    this.View.ShowErrMessage("上传文件大于3个，不支持处理后续逻辑");
                }
                // 取上传的文件名
                var fileInfo = uploadInfo[0] as Dictionary<string, object>;
                if (fileInfo != null)
                {
                    var fileName = fileInfo["ServerFileName"].ToString();
                    var physicalPath = PathUtils.GetPhysicalPath(FileUploadServicesDir, fileName);
                    this.View.ShowMessage("文件上传成功，存放路径：" + physicalPath);
                }
            }

产品问题上传附件，方向重写CustomEvents不生效。在插件的CustomEvents里只能抓到抓不到FileChanged

100 产品问题 上传附件，方向重写CustomEvents不生效。在插件的CustomEvents里只能抓到抓不到FileChanged

恭喜您！

产品问题
上传附件，方向重写CustomEvents不生效。在插件的CustomEvents里只能抓到抓不到FileChanged

100 产品问题上传附件，方向重写CustomEvents不生效。在插件的CustomEvents里只能抓到抓不到FileChanged