How can I use a .net dll in OpenEdge (AppBuilder)?

[roettgermann]

How can I use a .net dll in OpenEdge (AppBuilder)?
I know I have to define it in my path assemblies and that works well.
BUT: how ca I get some information of the dll?
Here I sende you the code of the dll and my own code.
test.dll:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace test
{
public class Kasse
{
// --------------- Parameter ----------
public int ID{ get; set; }
public string Name { get; set; }
// ---------------- Kontruktoren ----------
public Kasse() { }
// ----------------- Methoden -------------
public static List<Kasse> GetDummyListe()
{
List<Kasse> _lok = new List<Kasse>();
Kasse _k = new Kasse();
_k.ID = 1;
_k.Name = "Kasse 1";
_lok.Add(_k);
_k = new Kasse();
_k.ID = 2;
_k.Name = "Kasse 2";
_lok.Add(_k);
return _lok;
}
public static Kasse GetKasseNachID(int ID)
{
Kasse _k = (from _kas in Kasse.GetDummyListe() where _kas.ID == ID select _kas)
.FirstOrDefault();
return _k;
}
}
}

My own code:
DEFINE VARIABLE obj AS Progress.Lang.Object.
/*NEW PROGRESS.Lang.OBJECT*/

DEFINE VARIABLE vo-test AS Progress.Lang.Object.
vo-test = test.Kasse:GetKasseNachID (1) .

=> but here I don't get any information?
Can you help me or do you have another example?
I searched examples in
OpenEdge-install-directory\src\samples\dotnet\OrderInfo, but the path don't exist on my machine?
Best regards Matthias