void ShowImage(double compound)
    {
        HideImages();

        if (compound > 0.05)
        {
            SentimentImageHappy.Show();
        }
        else if (compound < -0.05)
        {
            SentimentImageMad.Show();
        }
        else
        {
            SentimentImageNeutral.Show();
        }
    }
 void HideImages()
 {
     SentimentImageHappy.Hide();
     SentimentImageNeutral.Hide();
     SentimentImageMad.Hide();
 }