public MainWindowViewModel()
{
/*
* create book collection and add three example books
*/
BookCollection MyBookCollection = new BookCollection();
MyBookCollection.Add(new Book());
MyBookCollection.ElementAt <Book>(0).Author = "Lars Raschke";
MyBookCollection.ElementAt <Book>(0).Title = "How to program last minute";
MyBookCollection.ElementAt <Book>(0).Edition = 1;
MyBookCollection.ElementAt <Book>(0).PubYear = 2018;
MyBookCollection.ElementAt <Book>(0).Available = true;
MyBookCollection.Add(new Book());
MyBookCollection.ElementAt <Book>(1).Author = "Dieter Bohlen";
MyBookCollection.ElementAt <Book>(1).Title = "Weg zum Erfolg";
MyBookCollection.ElementAt <Book>(1).Edition = 3;
MyBookCollection.ElementAt <Book>(1).PubYear = 1995;
MyBookCollection.ElementAt <Book>(1).Available = false;
MyBookCollection.Add(new Book());
MyBookCollection.ElementAt <Book>(2).Author = "Beate Uhse";
MyBookCollection.ElementAt <Book>(2).Title = "Gummibaum statt Gummifrauen";
MyBookCollection.ElementAt <Book>(2).Edition = 2;
MyBookCollection.ElementAt <Book>(2).PubYear = 2010;
MyBookCollection.ElementAt <Book>(2).Available = true;
// create a wrapped book collection of the book collection
MyWrappedBookCollection = new BookCollectionViewModel(MyBookCollection);
// creating RelayCommands with the given methods
openFileDialogCommand = new RelayCommand(OpenNewFileDialog);
exitApplicationCommand = new RelayCommand(ExitCurrentApplication);
addNewBookCommand = new RelayCommand(() =>
Messenger.Instance.Send <OpenNewBookWindowMessage>(new OpenNewBookWindowMessage()));
}
