//capa usuario

public class Usuario
{
    private string _IdUsuario;
    private string _Rut;
    private string _NombreCompleto;
    private int _Telefono;
    private string _Correo;

    //constructor hecho
    //getter y setter hechos

}

//capa para llamar instancia del cmt
public string MetodoCMT()
{
    try
    {
        return obNombreUsuarioDA.MetodoCMT();
    }
    catch (Exception ex)
    {
        throw ex;
        return null;
    }
}

//capa para conectar al CMT
public class ConectarCMT
{
    static public String _userName = ConfigurationManager.AppSettings["USER_CRM"];
    static public String _password = ConfigurationManager.AppSettings["PASS_CRM"];
    static public string _deviceId = "";
    static public string _devicePass = "";
    static public String organizationUri = ConfigurationManager.AppSettings["URL_CRM"];

    static public OrganizationServiceProxy CreateOrganization()
    {
        ClientCredentials cred1 = new ClientCredentials();
        cred1.UserName.UserName = _userName;
        cred1.UserName.Password = _password;
        ClientCredentials cred2 = new ClientCredentials();
        cred2.UserName.UserName = _deviceId;
        cred2.UserName.Password = _devicePass;
        OrganizationServiceProxy obj;
        if (_deviceId.Length > 0)
            obj = new OrganizationServiceProxy(
            new Uri(organizationUri),
            null,
            cred1,
            cred2);
        else
            obj = new OrganizationServiceProxy(
           new Uri(organizationUri),
           null,
           cred1,
           null);
        obj.EnableProxyTypes();

        return obj;

    }
}

//Capa de datos
public static bool MetodoAgregarCRM(Usuario us)
{
    IOrganizationService servicio;
    servicio = ConectarCMT.CreateOrganization();
    try
    {
        Account ac = new Account();
        ac.zth_idn = us.Rut;
        ac.Name = us.NombreCompleto;
        ac.Telephone1 = us.Telefono.ToString();
        ac.EMailAddress1 = us.Correo;
        servicio.Create(ac);
        return true;
    }
    catch (Exception ex)
    {
        throw new Exception(ex.Message);
    }

}
//capa de vista
protected void btnAgregar_Click(object sender, EventArgs e)
{
    try
    {
        Usuario us = new Usuario();
        us.Rut = txtRut.Text;
        us.NombreCompleto = txtNombreCompleto.Text;
        us.Telefono = int.Parse(txtTelefono.Text);
        us.Correo = txtCorreo.Text;
        bool resp = NombreUsuarioDA.MetodoAgregarCMT(us);
    }
    catch (Exception ex)
    {
        throw new Exception(ex.Message); ;
    }

    Limpiar();

}

private void Limpiar()
{
    txtRut.Text = "";
    txtNombreCompleto.Text = "";
    txtTelefono.Text = "";
    txtCorreo.Text = "";
}