private void Btn_ToMorse_Click(object sender, EventArgs e)
        {
            string buffer = TextBox.Text;

            TextBox.Text = "";

            foreach (char chr in buffer)
            {
                Console.Write(chr);
                TextBox.Text += MorseCode.ToMorse(chr) + ' ';
            }
        }
 private void Form1_Load(object sender, EventArgs e)
 {
     TextBox.Text = MorseCode.ToMorse('a');
 }