private void WriteMemberPercistanceData(string username, long personalNumber)
{
// todo: return cast error message if user already exist
models.XmlHandler xmlHandler = new models.XmlHandler();
xmlHandler.DeSerialize();
models.Member newMember = new models.Member(username, personalNumber);
xmlHandler.AddMember(newMember);
}
/// <summary>
/// Calls Add new member View
/// </summary>
private void AddNewMember()
{
models.Member newMember = _mainView.AddMember();
_xmlHandler.AddMember(newMember);
}