public override void ShowNode(XmlNode node)
 {
     if (editDefinitionPanel.IsOwnerOfNode(node))
     {
         tabControl.SelectedTab = editDefinitionTabPage;
         editDefinitionPanel.ShowNode(node);
     }
     else if (editDataPanel.IsOwnerOfNode(node))
     {
         tabControl.SelectedTab = editDataTabPage;
         editDataPanel.ShowNode(node);
     }
     else
     {
         tabControl.SelectedTab = editDefinitionTabPage;
         editDefinitionPanel.ReloadData();
     }
 }