public static void AddCategory(string category)
{
Categories.Add(category);
var sorted = Categories.OrderBy(x => x).ToList();
Categories.Clear();
Categories.AddRange(sorted);
}
public void LoadList(List <Book> list)
{
if (list == null)
{
return;
}
ShownBooks.Clear();
list.ForEach(book => { book.DownloadedGUI = book.IsDownloaded; });
ShownBooks.AddRange(list);
BookCount = $"Shown: {ShownBooks.Count}";
}