private void porClienteToolStripMenuItem_Click(object sender, EventArgs e)
{
frmRelatorioCliente novo = new frmRelatorioCliente();
novo.Show();
}
private void porClienteToolStripMenuItem_Click(object sender, EventArgs e)
{
Form frm = new frmRelatorioCliente();
frm.MdiParent = this;
frm.Show();
}