Prgress Bar withTimer open window

public class CustomProgressBar : ProgressBar
{
    public event EventHandler ValueChanged;

    public new int Value
    {
        get { return base.Value; }
        set
        {
            if (base.Value != value)
            {
                base.Value = value;
                OnValueChanged(EventArgs.Empty);
            }
        }
    }

    protected virtual void OnValueChanged(EventArgs e)
    {
        EventHandler eh = ValueChanged;
        if (eh != null)
            eh(this, e);
    }
}

void customProgressBar_ValueChanged(object sender, EventArgs e)
{
    CustomProgressBar cpb = sender as CustomProgressBar;
    if (cpb != null)
        if (cpb.Value == 100)
            new home().Show();
}