Binding data to textbox

[Wild Thing]

Hi everybody,

I'm trying to bind a class variable to a textbox.

the data class looks like:

    public class route
    {
        public string name { get; set; }
        public int adress { get; set; }
 
        public route()
        {
            name = "";
            adress = 0;
        }
    }
    public class adr
    {
        public int index { get; set; }
 
        public route r1 { get; set; }
        public route r2 { get; set; }
        public adr()
        {
            index = 0;
            r1 = new route();
            r2 = new route();
        }
    }
 
    public class para
    {
        public int i1 { get; set; }
        public int i2 { get; set; }
    }
 
    public class adrData
    {
        public string label { get; set; }
        public adr ad { get; set; }
        public para pa { get; set; }
    }

When I try to bind f.e. ad.r1.name to a textbox text via designer, it offers only label, ad and pa for binding:




What am I missing here?

Thnx adv for your answers.

btw: I'm using VS2012 and .NET4.5