private void Form1_Load(object sender, EventArgs e)
        {
            lst.Items.Add("Spaghetti");    //Index 0
            lst.Items.Add("Grüne Nudeln"); //Index 1
            lst.Items.Add("Tortellini");  //Index 2
            lst.Items.Add("Pizza"); //Index 3
            lst.Items.Add("Lasagne");  //Index 4


             lst.SelectedIndex = 3;


        }

        private void lst_SelectedIndexChanged(object sender, EventArgs e)
        {


            label1.Text = "";
            label1.Text = "Auswahl: ";


            label1.Text += lst.SelectedItem;

        }
    }
}