protected void cpPhoto_Callback(object sender, CallbackEventArgsBase e)
        {
            BootstrapCallbackPanel cp  = sender as BootstrapCallbackPanel;
            BootstrapBinaryImage   img = cp.FindControl("imgPhoto") as BootstrapBinaryImage;

            img.Value = Session["DriverPhotoImageBytes"];
        }
 protected void gv_HtmlDataCellPrepared(object sender, BootstrapGridViewTableDataCellEventArgs e)
 {
     if (e.DataColumn.FieldName == "ImageBytes")
     {
         BootstrapBinaryImage imgPhotoGrid = gv.FindRowCellTemplateControl(e.VisibleIndex, gv.Columns["ImageBytes"] as GridViewDataColumn, "imgPhotoGrid") as BootstrapBinaryImage;
         imgPhotoGrid.Value = e.CellValue;
     }
 }
        protected void imgPhoto_Init(object sender, EventArgs e)
        {
            BootstrapBinaryImage img = sender as BootstrapBinaryImage;

            if (!gv.IsNewRowEditing)
            {
                img.Value = (byte[])gv.GetRowValues(gv.EditingRowVisibleIndex, "ImageBytes");
            }
        }