public void RemoveCertificate(UserCertificate item)
{
UserCertificateCollection.Remove((UserCertificate)item);
}
public void AddCertificate(UserCertificate item)
{
UserCertificateCollection.Add(new UserCertificate {
Thumbprint = item.Thumbprint, Subject = item.Subject, UserId = this.ID
});
}