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public void AppBox_Load(object sender, EventArgs e)
        {

      --> hier müsste die if Abfrage rein (if File.Exists) <--

            string monn = File.ReadAllText(@">path<\FoodManager\texte\Montag.txt", Encoding.UTF8);
            string monv = File.ReadAllText(@">path<\FoodManager\texte\Montag_v.txt", Encoding.UTF8);
        }

 int tickstr = 1;
    
      void ticker2(object sender, EventArgs e)
        {
            switch (Convert.ToInt32(DateTime.Now.DayOfWeek))
            {
                 case 1:
                   if (monn == ("✘ Heute gibt es nur Vegetarisch. ✘") && monv == ("✘ Heute gibt es kein Vegetarisch. ✘"))
                        {
                            lblticker.Text = ("Heute ist die Kantine geschlossen.");
                            lblticker.BackColor = Color.White;
                        }
                        else
                        {

                            switch (tickstr)
                            {
                                case 1:
                                    lblticker.Text = monn;
                                    tickstr = 0;
                                    lblticker.BackColor = Color.FromArgb(205, 255, 240, 246);
                                    break;
                                case 0:
                                    lblticker.Text = monv;
                                    tickstr = 1;
                                    lblticker.BackColor = Color.FromArgb(220, 240, 255, 244);
                                    break;
                            }
                        }