private void RefreshAll()
{
Dots.Clear();
Dots.AddRange(Klass.Kls_to_List(gls));
Klass.RefreshAll(gls);
if (chart_auto.Checked)
{
Fill_chart();
}
RefreshScreen();
dots_list.DataSource = null;
dots_list.Items.Clear();
dots_list.DataSource = Dots;
classes.DataSource = null;
classes.Items.Clear();
classes.DataSource = gls;
}