void richEditControl_FinishHeaderFooterEditing(object sender, DevExpress.XtraRichEdit.HeaderFooterEditingEventArgs e)
 {
     headerFooterToolsRibbonPageCategory1.Visible = false;
 }
 void richEditControl_StartHeaderFooterEditing(object sender, DevExpress.XtraRichEdit.HeaderFooterEditingEventArgs e)
 {
     headerFooterToolsRibbonPageCategory1.Visible = true;
     ribbonControl.SelectedPage = headerFooterToolsDesignRibbonPage1;
 }