using System.Reflection;
var propertyInfos = typeof(Student).GetProperties();
var propnames = new List<string>();
foreach(var prop in propertyInfos){
propnames.Add(prop.Name)
}
Then bind the propnames
list of strings to your combobox.
Using LINQ:
using System.Linq;
using System.Reflection;
var propertyInfos = typeof(Student).GetProperties();
var propnames = propertyInfos.Select(prop => prop.Name).ToList();