public Book GetBookById(int id)
{
foreach (Book book in books.Value)
{
bookCollection.Add(book);
}
return(bookCollection[id]);
}
public void MakeClone()
{
books.Clear();
editions.Clear();
genres.Clear();
companies.Clear();
foreach (Book b in database.bookManager.books)
{
books.Add(new Book(b.Title, b.Author, b.edition, b.genre, b.PublishYear, b.PublishLocation, b.Publisher, b.Isbn, b.PagesNumber, b.Note));
}
foreach (EGC e in database.egcManager.editions)
{
editions.Add(new EGC(e.Name));
}
foreach (EGC g in database.egcManager.genres)
{
genres.Add(new EGC(g.Name));
}
settings.SortBy = database.settings.SortBy;
settings.SortUp = database.settings.SortUp;
settings.SortUpEditions = database.settings.SortUpEditions;
settings.SortUpGenres = database.settings.SortUpGenres;
settings.SortBooks = database.settings.SortBooks;
settings.SortEditions = database.settings.SortEditions;
settings.SortGenres = database.settings.SortGenres;
}
public void AddBook(Book Book, int Copies)
{
if (BookCollection.ContainsKey(Book))
{
Console.WriteLine($"Book {Book} is allready in the collection of {Name}.");
return;
}
BookCollection.Add(Book, new BookStock(Copies));
}
/*
* Method for synchronization if the collection of the ViewModels changed with the
* cases add, remove and reset.
*/
private void ViewModelCollectionChanged(object bookCollectionVM, NotifyCollectionChangedEventArgs e)
{
if (synchDisabled)
{
return;
}
// Disable synchronization
synchDisabled = true;
switch (e.Action)
{
//add a new book to the model collection
case NotifyCollectionChangedAction.Add:
foreach (var newBook in e.NewItems.OfType <BookViewModel>().Select(v => v.wrappedBook).OfType <Book>())
{
bookCollection.Add(newBook);
}
break;
//remove a book from the model collection
case NotifyCollectionChangedAction.Remove:
foreach (var oldBook in e.OldItems.OfType <BookViewModel>().Select(v => v.wrappedBook).OfType <Book>())
{
bookCollection.Remove(oldBook);
}
break;
/*
* reset the model collection by clearing the collection and adding the models of the
* saved viewmodels.
*/
case NotifyCollectionChangedAction.Reset:
bookCollection.Clear();
foreach (var book in e.NewItems.OfType <BookViewModel>().Select(v => v.wrappedBook).OfType <Book>())
{
bookCollection.Add(book);
}
break;
}
//Enable synchronization
synchDisabled = false;
}
private async void GetBooks()
{
Task <List <BookModel> > task = Task.Run <List <BookModel> >(() => {
var t = _bookDataAccess.GetAllData(Properties.Resources.GetAllBooks);
return(t);
});
BookCollection.Clear();
_log.Message("Getting All books from the database");
var booksCollection = await task;
booksCollection.ForEach(t => BookCollection.Add(t));
}
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()));
}
private async void GetBooks()
{
ErrorMsgVisibility = Visibility.Collapsed;
BookCollection.Clear();
Task <List <BookModel> > task = Task.Run <List <BookModel> >(() => {
var t = _dataAccess.GetAllData(Properties.Resources.GetAllBooks);
return(t);
});
_log.Message("Getting All the bok from Database");
var booksCollection = await task;
booksCollection.ForEach(t => BookCollection.Add(t));
}
public BookCollection GetBookCollection(string query, int page)
{
BookCollection returnCollection = new BookCollection();
for(int i = 0; i < 25; i++)
{
Book newBook = new Book();
newBook.Title = "Buch " + i.ToString();
newBook.Description = "Beschreibung" + i.ToString();
newBook.PicUrl = "PicUrl " + i.ToString();
returnCollection.Add(newBook);
}
return returnCollection;
}
public BookCollection GetBookCollection(string query, int page)
{
BookCollection returnCollection = new BookCollection();
for (int i = 0; i < 25; i++)
{
Book newBook = new Book();
newBook.Title = "Buch " + i.ToString();
newBook.Description = "Beschreibung" + i.ToString();
newBook.PicUrl = "PicUrl " + i.ToString();
returnCollection.Add(newBook);
}
return(returnCollection);
}
protected void HandlerUpdateBook(object sender, EventArgs e)
{
var bookCollection = new BookCollection();
var book = bookCollection.Book;
book.Isbn = txtIsbn.Text;
book.Title = txtTitle.Text;
book.Author = txtAuthor.Text;
book.Publisher = txtPublisher.Text;
book.PubYear = txtPubYear.Text;
book.ShelfNo = txtShelfNo.Text;
book.Edition = Convert.ToInt32(txtEdition.Text);
book.GenreCode = ddlGenre.SelectedValue;
bool isThere = book.Find(book.Isbn);
if (_isNew && !isThere)
{
bookCollection.Add();
}
else if (isThere && _isNew)
{
//Display Error
ScriptManager.RegisterStartupScript(
this,
typeof(Page),
"Alert",
"<script>alert('Isbn already exists.');</script>",
false);
}
else
{
bookCollection.Update();
Response.Redirect("BookManagement.aspx");
}
}
void ParseResponse(string responseXml, ref BookCollection books)
{
// get rid of namespaces
responseXml = responseXml.Replace(" xmlns=\"", " whocares=\"");
var xml = new XmlDocument();
xml.LoadXml(responseXml);
// trap API error
var errors = GetErrors(xml, "errorMessage/error/message");
if (errors.Count > 0)
{
_errorMessages = errors;
_status = SearchStatus.Failed;
return;
}
// trap API method call failure error
var isComplete = xml.SelectSingleNode("findItemsAdvancedResponse/ack").InnerText.Equals("Success");
if (!isComplete)
{
_errorMessages = GetErrors(xml, "findItemsAdvancedResponse/errorMessage/error/message");
_status = SearchStatus.Failed;
return;
}
foreach (XmlNode itemNode in xml.SelectNodes("findItemsAdvancedResponse/searchResult/item"))
{
var book = new BookModel();
book.Status = _status;
try
{
book.Code = itemNode.SelectSingleNode("itemId").InnerText;
book.Title = itemNode.SelectSingleNode("title").InnerText;
book.Url = new Uri(itemNode.SelectSingleNode("viewItemURL").InnerText);
book.Isbn = _isbn;
book.Location = itemNode.SelectSingleNode("location").InnerText;
book.Country = itemNode.SelectSingleNode("country").InnerText;
book.Seller = new SellerModel
{
Name = itemNode.SelectSingleNode("sellerInfo/sellerUserName").InnerText,
FeedbackScore = long.Parse(itemNode.SelectSingleNode("sellerInfo/feedbackScore").InnerText),
FeedbackPercent = decimal.Parse(itemNode.SelectSingleNode("sellerInfo/positiveFeedbackPercent").InnerText)
};
book.Price = decimal.Parse(itemNode.SelectSingleNode("sellingStatus/convertedCurrentPrice").InnerText);
var condition = itemNode.SelectSingleNode("condition/conditionId");
if (condition == null)
{
book.Condition = BookCondition.Unknown;
}
else
{
// exceptional conditions
var conditionNumber = int.Parse(condition.InnerText);
if (conditionNumber == 2750)
{
conditionNumber = (int)BookCondition.LikeNew;
}
book.Condition = (BookCondition)conditionNumber;
}
book.Status = SearchStatus.Complete;
}
catch (XmlException ex)
{
book.Status = SearchStatus.Failed;
}
if (book.Status == SearchStatus.Complete && IncludeBook(book, _filter))
{
books.Add(book);
}
}
_status = SearchStatus.Complete;
}
protected void btnReadXML_Click(object sender, EventArgs e)
{
string path = Server.MapPath("App_Data/books.xml");
XDocument booksXml = XDocument.Load(path);
#region Fetching first book
var firstBook = booksXml.Descendants("book").First();
string firstBookId = firstBook.Attribute("id").Value;
string firstBookAuthor = firstBook.Element("author").Value;
string firstBookTitle = firstBook.Element("title").Value;
string firstBookGenre = firstBook.Element("genre").Value;
decimal firstBookPrice = firstBook.Element("price").Value.ParseToDecimal();
DateTime firstBookPublishDate =
DateTime.Parse(firstBook.Element("publish_date").Value);
string firstBookDescription = firstBook.Element("description").Value;
string str = "myBOOK";
bool contains = str.ContainsIgnoreCase("book");
#endregion
#region foreach version
List <string> names = new List <string>();
foreach (XElement node in booksXml.Descendants("book"))
{
if (node.Element("price").Value.ParseToDecimal() > 30)
{
names.Add(node.Element("title").Value);
}
}
#endregion
#region Linq To XML version
var booksMoreThan30 = from b in booksXml.Descendants("book").AsParallel()
where b.Element("price").Value.ParseToDecimal() > 30
select new Book(b.Element("title").Value);
decimal mostExpensivePrice = booksXml
.Descendants("book")
.Max(book => book.Element("price").Value.ParseToDecimal());
Decimal cheapestPrice = booksXml
.Descendants("book")
.Min(book => book.Element("price").Value.ParseToDecimal());
#endregion
#region Indexers Sample
//List<string> d = null;
//d[78] = "oi"; //set
//string v = d[5]; //get
BookCollection myBookCollection = new BookCollection();
myBookCollection.Add(new Book("Game of Thrones"));
string name = myBookCollection[0].Name;
Book hp = myBookCollection["Game of Thrones"];
#endregion
}
