ienumerable - C# - Create Enumeraor that Get Values Randomly -

i want create ienumerable class in c# when next value randomly list of object

i want random value each time want next example list length 100 , 1000 times value each time random value

i create below class program hanged when create new instance class

public class myenumerable:system.collections.ienumerable {     public int regionid { get; set; }      list<medium> rankedlist;     mediaenumerator pe;      public mylist(int regionid)     {         regionid = regionid;         rankedlist = showvideo.getranklist(regionid);         pe = new mediaenumerator(rankedlist);     }      public system.collections.ienumerator getenumerator()     {         return (ienumerator)(pe);     } }  public class mediaenumerator : ienumerator {     list<medium> rankedlist;     int position = -1;      public mediaenumerator(list<medium> list)     {         rankedlist = list;     }      random rnd = new random();      public bool movenext()     {         position = rnd.next(rankedlist.count);         return true;     }      public void reset()     {         position = -1;     }      object ienumerator.current     {                 {             return current;         }     }      public fileinfo current     {                 {             try             {                 fileinfo fi = new fileinfo(rankedlist[position].mediaurl);                 return fi;             }             catch (indexoutofrangeexception)             {                 throw new invalidoperationexception();             }         }     } } 

using iterators random , infinite loop simplest solution.

public ienumerable<t> getrandomelements<t>(t[] elements) {     random rand = new random();     while(true)     {         int index = rand.next(0, elements.length);         yield return elements[index];     } }