private void pagosAdmin(object sender, EventArgs e)
{
var mainPagos = new MainPagos(this);
mainPagos.MdiParent = this;
mainPagos.Show();
}
private void btnPagosAlumno_Click(object sender, EventArgs e)
{
minimizeForms();
MainPagos form = MainPagos.getInstance();
configurarForm(form);
form.Show();
inhabilitarBoton("Pagos", "Alumno");
}