private static BookLib.ItemCollection items;//(because has same name of class in ui)
static MainPage()
{
//The static fields are intilaized once, in the first time which this page is called
//and throuhout the runtime of app, the fields are changed by the user
users = new ManagerUsers();
items = new BookLib.ItemCollection();
users.AddUser(new User("mushky", "kkk", "0586191191", "lod", "02/02/1997", CodeOccupation.Customer));
users.AddUser(new User("mushky2", "kkk", "0586191191", "lod", "02/02/1997", CodeOccupation.Librarian));
users.AddUser(new User("mushky5", "kkk", "0586191191", "lod", "02/02/1997", CodeOccupation.DiscounManager));
users.AddUser(new User("mushky4", "kkk", "0586191191", "lod", "02/02/1997", CodeOccupation.LibraryManager));
List <Genre> genres = new List <Genre>();
genres.Add(0);
items.AddItem(new Book("marko", 3, "sfarim", 56, 2018, "ari", 1, genres));
items.AddItem(new Book("marko", 3, "sfarim", 56, 2018, "ari", 1, genres));
items.AddItem(new Book("marko", 3, "sfarim", 56, 2018, "ari", 1, genres));
items.AddItem(new Book("marko", 3, "sfarim", 56, 2018, "ari", 1, genres));
items.AddItem(new Journal("marko", 3, "sfarim", 56, "04/07/2010", "lll", 0));
items.AddItem(new Journal("marko", 3, "sfarim", 56, "04/07/2010", "lll", 0));
items.AddItem(new Journal("marko", 3, "sfarim", 56, "04/07/2010", "lll", 0));
items.AddItem(new Journal("marko", 3, "sfarim", 56, "04/07/2010", "lll", 0));
items.AddItem(new Journal("marko", 3, "sfarim", 56, "04/07/2010", "lll", 0));
}
public void RegisterNewBook(IBook newBook)
{
newBook = new Book(newBook.Author, newBook.Genre, newBook.Edition, newBook.Name,
newBook.CopyNumber, newBook.PrintDate, newBook.Price);
_collection.AddItem(newBook);
}