protected void ShowCurrentPanel()
{
HideAllPanels();
Control control = (Control) panels[panelIndex];
control.Visible = true;
buttonBack.Enabled = panelIndex != 0;
PanelChanged(this, EventArgs.Empty);
// if (panelIndex == panels.Count - 1)
// {
// EnableFinishButton();
// }
// else
// {
// EnableNextButton();
// }
}