private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
            var selectedLocation = (sender as ComboBox).SelectedItem as string;

            images = DataAcces.GetImages(locations.Find(x => x.Localitate == selectedLocation).Id);

            comboBox2.Items.Clear();
            comboBox2.Items.AddRange(images.ToArray());
        }