public void ImportPasswords(object sender, EventArgs e)
        {
            var result = _openFileDialog.ShowDialog();

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

            _credentialService.ImportCredentials(_openFileDialog.FileName);

            if (_credentialService.Credentials.Any())
            {
                _window.CopyPasswordToClipboardMenuItem.Enabled = true;
                _window.ExportPasswordsMenuItem.Enabled         = true;
            }
            else
            {
                _window.TrayBarMenu.ShowBalloonTip(_configuration.DefaultBalloonTipTimeout, "Passwords", "Uploaded file has no entries. Please load passwords.", ToolTipIcon.Info);
                _window.CopyPasswordToClipboardMenuItem.Enabled = false;
                _window.ExportPasswordsMenuItem.Enabled         = false;
            }
        }