private void lblCadCli_Click(object sender, EventArgs e)
{
CadCli cad = new CadCli();
cad.MdiParent = this;
cad.Show();
}
private void btnCad_Click(object sender, EventArgs e)
{
CadCli telaCadastroCli = new CadCli();
telaCadastroCli.Show();
}