System.Text.RegularExpressions.GroupCollection
namespace System.Text.RegularExpressions
{
public class GroupCollection : ICollection, IEnumerable
{
public int Count { get; }
public bool IsReadOnly { get; }
public bool IsSynchronized { get; }
public Group this[int groupnum] { get; }
public Group this[string groupname] { get; }
public object SyncRoot { get; }
public void CopyTo(Array array, int arrayIndex);
public IEnumerator GetEnumerator();
}
}