how add dinamic property to object in silverlight?

i have one object objtest and a list of strings lstProperty .
i want to add strings to object as a property i dont want to add key or value


list<string> lstProperty=new List<String> lstProperty.add("Name");
  lstProperty.add("Code");

for examples object objtest i want to add property name and code to it and used test.name in my propject i want to make my property dinamicly based on my list.