你可以让它递归，然后如果你有任何面板/组框，他们的孩子也可以看到.

You could make it recursive, then if you have any panels/group boxes their children get made visible too.

public void MakeVisible(Control control)
{
    if(control.HasChildren)
    {
        foreach (Control child in control.Controls)
        {
            MakeVisible(child);
        }
    }
    control.Visible = true;
}