public Enumerator(UserCollection collection)
{
this.wrapped = ((System.Collections.CollectionBase)collection).GetEnumerator();
}
/// <summary>
/// Initializes a new instance of the UserCollection class, containing elements
/// copied from another instance of UserCollection
/// </summary>
/// <param name="items">
/// The UserCollection whose elements are to be added to the new UserCollection.
/// </param>
public UserCollection(UserCollection items)
{
this.AddRange(items);
}