void m_intervalTreeView_AfterCheck(object sender, TreeViewEventArgs e)
{
RailGroup rg = e.Node.Tag as RailGroup;
if (rg != null)
{
m_intervalControl.ShowGroup(rg, e.Node.Checked);
}
else
{
KeyValuePair <RailGroup, int> rgi = (KeyValuePair <RailGroup, int>)e.Node.Tag;
m_intervalControl.ShowGroupRail(rgi.Key, rgi.Value, e.Node.Checked);
}
}
