namespace System.Security.Cryptography.X509Certificates { public class X509Certificate2Collection : X509CertificateCollection { public new X509Certificate2 this[int index] { get; set; } public X509Certificate2Collection(); public X509Certificate2Collection(X509Certificate2 certificate); public X509Certificate2Collection(X509Certificate2[] certificates); public X509Certificate2Collection(X509Certificate2Collection certificates); public int Add(X509Certificate2 certificate); public void AddRange(X509Certificate2[] certificates); public void AddRange(X509Certificate2Collection certificates); public bool Contains(X509Certificate2 certificate); public byte[] Export(X509ContentType contentType); public byte[] Export(X509ContentType contentType, string password); public X509Certificate2Collection Find(X509FindType findType, object findValue, bool validOnly); public new X509Certificate2Enumerator GetEnumerator(); public void Import(byte[] rawData); public void Import(byte[] rawData, string password, X509KeyStorageFlags keyStorageFlags); public void Import(string fileName); public void Import(string fileName, string password, X509KeyStorageFlags keyStorageFlags); public void Insert(int index, X509Certificate2 certificate); public void Remove(X509Certificate2 certificate); public void RemoveRange(X509Certificate2[] certificates); public void RemoveRange(X509Certificate2Collection certificates); } }