private void btRelLista_Click(object sender, EventArgs e)
{
if (relatorio == null)
{
relatorio = new formRelatorio();
relatorio.TRel = 4;
relatorio.MdiParent = this;
relatorio.Show();
relatorio.FormClosed += new FormClosedEventHandler(fecharRelVendas);
}
}
private void fecharRelVendas(object sender, EventArgs e)
{
relatorio = null;
}