/// <summary>
/// Reverts the Author of the Book to the original Author prior to changes.
/// </summary>
private void RevertAuthor()
{
//Revert Book.Author
if (originalAuthor != null)
{
//Revert Author
Book.Author = originalAuthor;
Book.Author_PersonId = originalAuthor.PersonId;
//Revert MAuthor in local collection
List <MAuthor> authorList = controller.GetAuthorsList();
foreach (MAuthor ma in authorList)
{
if (ma.ID == originalAuthor.PersonId) //if MAuthor is original Author, add the Book to the MAuthor
{
ma.Books.Add(Book);
}
else //Remove Book from MAuthor hwo is not original author
{
ma.Books.Remove(Book);
}
}
}
}
/// <summary>
/// Populates AuthorsTreeView with all MAuthor objects in collection
/// </summary>
private void LoadAuthorsList()
{
ObservableCollection <MAuthor> authorsList = new ObservableCollection <MAuthor>(controller.GetAuthorsList());
AuthorsTreeView.ItemsSource = authorsList;
}
/// <summary>
/// Loads all MAuthors in collection to ObservableCollection authorsList
/// </summary>
private void LoadAuthors()
{
authorList = new ObservableCollection <MAuthor>(
(from a in controller.GetAuthorsList()
select a).ToList());
}
