public CoffeesPage()
{
InitializeComponent();
coffeeDb = new CoffeeDb();
currentCoffeesList = coffeeDb.getcoffeesList();
getCoffees();
}
public AddCoffeePage()
{
InitializeComponent();
coffeeName.TextChanged += coffeeName_TextChanged;
coffeeDescription.TextChanged += coffeeDescription_TextChanged;
coffeePrice.TextChanged += coffeePrice_TextChanged;
btnAdd.Clicked += btnAdd_Clicked;
coffeeDb = new CoffeeDb();
}