private void button5_Click(object sender, EventArgs e)//Buscar
        {
            int      aux    = 0;
            Insertar Buscar = new Insertar();

            Buscar.ObtenerEstudiante(Convert.ToInt32(textBox1.Text), "", "", "", 0);
            // Buscar.Cargar();
            // Buscar.LLenar();
            aux = Buscar.Cargar();
            if (aux == 3)
            {
                textBox6.Text = "No existe el usuario";
            }
            if (aux == 2)
            {
                textBox6.Text = "Error de Conexion";
            }
            if (aux == 1)
            {
                textBox1.Text = String.Concat(Buscar.ID2());
                textBox2.Text = Buscar.Nombre2();
                textBox3.Text = Buscar.PApellido2();
                textBox4.Text = Buscar.SApellido2();
                textBox5.Text = String.Concat(Buscar.Edad2());
            }
        }
        private void button1_Click(object sender, EventArgs e)//Insertar
        {
            int      aux    = 0;
            Insertar Insert = new Insertar();

            Insert.ObtenerEstudiante(0, textBox2.Text, textBox3.Text, textBox4.Text, Convert.ToInt32(textBox5.Text));
            aux = Insert.Insert();
            if (aux == 1)
            {
                textBox6.Text = "Se guardo Correctamente";
                textBox1.Text = "";
                textBox2.Text = "";
                textBox3.Text = "";
                textBox4.Text = "";
                textBox5.Text = "";
            }
            else
            {
                textBox6.Text = "Se produjo un error";
            }
        }