Opc.Ua.Configuration.MainForm.ValidateAndImport C# (CSharp) Method

        private void ValidateAndImport(CertificateStoreIdentifier store, X509Certificate2 certificate)
        {
            if (store == null || certificate == null)
            {
                return;
            }

            // validate the certificate using the trust lists for the certificate tool.                                
            try
            {
                CertificateValidator validator = new CertificateValidator();
                validator.Update(m_configuration);
                validator.Validate(certificate);
            }
            catch (ServiceResultException exception)
            {
                if (!HandleValidationError(certificate, exception))
                {
                    return;
                }
            }

            // confirm import.
            StringBuilder buffer = new StringBuilder();

            buffer.Append("You are adding this certificate to a trust list that may be shared with other applications.");
            buffer.Append("\r\n");
            buffer.Append("\r\n");
            buffer.Append("Would you still like to accept the certificate?\r\n");
            buffer.Append("\r\n");
            buffer.Append("Target Trust List = ");
            buffer.Append(store.ToString());
            buffer.Append("\r\n");
            buffer.Append("Certificate to Add = ");
            buffer.Append(certificate.Subject);

            DialogResult result = new YesNoDlg().ShowDialog(buffer.ToString(), "Import Certificate to Trust List");

            if (result != DialogResult.Yes)
            {
                return;
            }

            // update store.
            ICertificateStore physicalStore = store.OpenStore();

            if (physicalStore.FindByThumbprint(certificate.Thumbprint) == null)
            {
                physicalStore.Add(new X509Certificate2(certificate.RawData));
            }
        }