IEnumerator IEnumerable.GetEnumerator()
 {
     if (foreache == null)
     {
         foreache = new ForeachEnum1(this);
     }
     return(foreache);
 }
 public IEnumerator <T> GetEnumerator()
 {
     if (foreache == null)
     {
         foreache = new ForeachEnum1(this);
     }
     return(foreache);
 }