void m_ChoiceControl_SelectedItemChanged(object sender, ItemEventArgs e)
 {
     UpdateButtonsState();
 }
 void m_CubeBrowser_SelectedItemChanged(object sender, ItemEventArgs e)
 {
     var info_Node = m_CubeBrowser.SelectedNode as InfoBaseTreeNode;
     InfoBase info = info_Node != null ? info_Node.Info : null;
     Raise_SelectedItemChanged(info);
 }