public LoanViewModel()
{
rc = new RepositoryCopy();
rl = new RepositoryLoan();
RefreshCopies();
RefreshLoans();
}
public void Initialize()
{
authors = new List <Author>();
books = new List <Book>();
copies = new List <Copy>();
loans = new List <Loan>();
members = new List <Member>();
ra = new RepositoryAuthor();
rb = new RepositoryBook();
rc = new RepositoryCopy();
rl = new RepositoryLoan();
rm = new RepositoryMember();
}