private void btnIrAgregarC_Click(object sender, RoutedEventArgs e)
        {
            CrearCliente Cl = new CrearCliente();

            this.Close();
            Cl.ShowDialog();
        }
        private void btnVentanaCliente_Click(object sender, RoutedEventArgs e)
        {
            CrearCliente c = new CrearCliente();

            this.Close();
            c.ShowDialog();
        }
        private void btnIniciarSesion_Click(object sender, RoutedEventArgs e)
        {
            OracleCommand comando = new OracleCommand("SELECT * FROM USUARIO WHERE EMAIL= :email AND PASSWORD = :contra", conexion);

            comando.Parameters.AddWithValue(":email", txtEmail.Text);
            comando.Parameters.AddWithValue(":contra", txtPassword.Text);


            OracleDataReader lector = comando.ExecuteReader();

            if (lector.Read())
            {
                CrearCliente c = new CrearCliente();
                this.Close();
                c.ShowDialog();
            }
            else
            {
                MessageBox.Show("Usuario Incorrecto");
            }
        }