Needs to get the name from a List<> to be written in a richtextbox

I am trying to get the name from some goods added on a List<>. These names have to be written in a richtextbox, but I can't get fixed. I can see that I'm on the right direction, because it gets all the goods i want, but it just can't write the name in the box.

All i can see when Im debugging is:

Mandag Navn:

Navn:

Navn:

Navn:

Navn:

Navn:

Navn:

Navn:

Navn:

Hope someone helps me. Thx!

     开发者_如何学Python   richTextBox_lister.Clear();
        string listenavn = comboBox1.Text;
        int listenr = Convert.ToInt32(ictrInd.GetListeNr(listenavn));
        Indkøbsliste indkø = ictrInd.findIndkøbsliste(listenr);

        listofIndk = ictrInd.getListerIndkøb(indkø);

        int i;
        string s;
        s =  comboBox1.Text +"\n";
        for (i =0; i <= (listofIndk.Count -1); i++)
        {
            s = s + "Navn:  " + listofIndk[i].Navn + "\n";
        }
        richTextBox_lister.Text = s;

If this compiles the only possibility is that the properties "Navn" are empty / uninitialized. Check in the method ictrInd.getListerIndkøb(indkø) with the debugger if "Navn" is set. Otherwise post more code.