protected void SaveButton_Click(object sender, EventArgs e)
    {
        try
        {
            ErrorPanel.Visible = false;
            int      consultaId = Convert.ToInt32(ConsultaIdHiddenField.Value);
            Consulta obj        = new Consulta()
            {
                consultaId = consultaId,
                //fechaHora = Calendar1.SelectedDate.ToString(),
                fechaHora = Calendar1.SelectedDate.ToString("dd/MM/yyyy"),
                //fechaHora = Convert.ToString(Calendar1.SelectedDate),
                observacion = observacionTextBox.Text,
                diagnostico = DiagnosticoTextBox.Text,
                estudio     = EstudioTextBox.Text,
                citaId      = Convert.ToInt32(DropDownList1.SelectedValue)
                              //citaId = Convert.ToInt32(cita_IdTextBox.Text)
            };

            if (consultaId == 0)
            {
                ConsultaBLL.InsertarConsulta(obj);
            }
            else
            {
                ConsultaBLL.ActualizarConsulta(obj);
            }
        }
        catch (Exception ex)
        {
            ErrorPanel.Visible = true;
            return;
        }

        Response.Redirect("~/ListaConsultas.aspx");
    }