public void abrirFormHijo(object formHijo)
{
Prinicipal prin = new Prinicipal();
if (prin.panelContenedor.Controls.Count > 0)
{
prin.panelContenedor.Controls.RemoveAt(0);
}
Form fh = formHijo as Form; //no es formulario de nivel superior, si no secundario
fh.TopLevel = false;
fh.Dock = DockStyle.Fill;
prin.panelContenedor.Controls.Add(fh);
prin.panelContenedor.Tag = fh;
fh.Show();
}
private void button1_Click(object sender, EventArgs e)
{
Prinicipal principal = new Prinicipal();
principal.abrirFormHijo(new EntradaProducto());
}
