private void line_site_active()
{
if (_panel_line_site_b == null)
{
_panel_line_site_b = new line_side_boardcs();
_panel_line_site_b.Height = panel.Height;
_panel_line_site_b.Width = panel.Width;
panel.Controls.Add(_panel_line_site_b);
}
_panel_line_site_b.BringToFront();
button1.BackColor = Color.WhiteSmoke;
button2.BackColor = Color.Lime;
button3.BackColor = Color.WhiteSmoke;
}
public line_side_board_factor(UserControl callingForm)
{
InitializeComponent();
main_line_side = callingForm as line_side_boardcs;
}