/// <summary>
        /// This is the tool click handler for the Applications>Export ribbon group
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void export_ToolClick(object sender, ToolClickEventArgs e)
        {
            ApplicationsWorkItemController controller = workItem.Controller as ApplicationsWorkItemController;

            switch (e.Tool.SharedProps.Caption)
            {
            case CommonToolNames.ExportPDF:
                controller.ExportToPDF();
                break;

            case CommonToolNames.ExportXLS:
                controller.ExportToXLS();
                break;

            case CommonToolNames.ExportXPS:
                controller.ExportToXPS();
                break;

            default:
                break;
            }
        }