private void perfilToolStripMenuItem_Click(object sender, EventArgs e)
{
frmDM_Perfil o = new frmDM_Perfil(null);
o.MdiParent = this;
o.Show();
}
private void btnGoPerfil_Click(object sender, EventArgs e)
{
ePERFIL o = new ePERFIL();
o.PER_codigo = this.cmbPerfil.SelectedValue != null?this.cmbPerfil.SelectedValue.ToString() : "";
frmDM_Perfil o2 = new frmDM_Perfil(o);
o2.MdiParent = this.MdiParent;
o2.Show();
}