private void BajaRol_Load(object sender, EventArgs e)
{
List <Rol> roles = RepoRol.getInstance().getRolesHabilitados();
cmbRoles.DataSource = roles;
cmbRoles.DisplayMember = "Nombre";
}
private void iniciarComboBox()
{
List <Rol> roles = new List <Rol>();
roles = RepoRol.getInstance().getRoles();
cmbRoles.DataSource = roles;
cmbRoles.DisplayMember = "Nombre";
}