gridViewDataColumn

场景：ASPxGridView的GridViewDataColumn组件中EditItemTemplate中组件,该怎么处理

ASPxGridView的GridViewDataColumn组件中EditItemTemplate中组件
前台代码

...

<dxwgv:GridViewDataColumn FieldName="PictureUpload" VisibleIndex="13"   Visible="False" Caption ="图片">

    <EditItemTemplate>

        <dxuc:ASPxUploadControl ID="uplImage" runat="server" ClientInstanceName="uplImage" Size="35"    OnFileUploadComplete="uplImage_FileUploadComplete">

        </dxuc:ASPxUploadControl>

    </EditItemTemplate>

    <EditFormSettings VisibleIndex="13"  Visible="True"/>

    <EditFormCaptionStyle Wrap="False">

    </EditFormCaptionStyle>

</dxwgv:GridViewDataColumn>

...

后台代码

 protected void ASPxGridDetail_RowUpdated(object sender, DevExpress.Web.Data.ASPxDataUpdatedEventArgs e)

    {


        bool isEdit = ASPxGridDetail.IsEditing;

        //ASPxUploadControl f = (ASPxUploadControl)ASPxGridDetail.TemplateControl.FindControl("uplImage");

        //ASPxUploadControl file = (ASPxUploadControl)(ASPxGridDetail.Columns["PictureUpload"].Grid.TemplateControl.FindControl("uplImage"));

        //ASPxUploadControl f = (ASPxUploadControl)this.ASPxGridDetail.TemplateControl.FindControl("uplImage");

        //GridViewDataColumn gird = (GridViewDataColumn)ASPxGridDetail.Columns["PictureUpload"] ;

        //foreach (TemplateControl ctrl in gird.Grid.TemplateControl)

        //{

        //    string ctrlName = ctrl.ToString();

        //}

        //ASPxUploadControl f = (ASPxUploadControl)ASPxGridDetail.FindEditRowCellTemplateControl(gird , "uplImage");


        string filename = f.FileName;

        string UpdateLog = "Id=" + e.Keys["Id"].ToString();

        DataAccess.SystemLog.InsertLogInfo(LoggingType.Update, "库存管理", "仓库类型维护", UpdateLog);

    }

小弟想在后台取到前台 ID为uplImage 的ASPxUploadControl 控件用了多种方法都取不到，不知道是什么原因.
查了很多帖子都找不到啊....有大神帮忙么?~
------解决方案--------------------

ASPxUploadControl f=((ASPxTextBox)this.ASPxGridView_ID.FindRowCellTemplateControl(0, this.ASPxGridView_ID.Columns["PictureUpload"] as GridViewDataColumn, "uplImage"));

ASPxGridView_ID为dxwgv:ASPxGridView ID="ASPxGridView_ID"