public BookDetailViewModel(Book book)
{
this.Reviews = new ObservableCollection<ReviewViewModel>();
this.BuyLinks = new ObservableCollection<BuyLinkViewModel>();
TheBook = new Book();
TheBook = book;
}
public void UpdateViewModel(Book book)
{
TheBook = book;
isLoaded = true;
}
public List<Book> BookParse(string xmlFile)
{
List<Book> bl = new List<Book>();
XNamespace d = @"http://www.w3.org/2005/Atom";
XNamespace db = @"http://www.douban.com/xmlns/";
XNamespace gd = @"http://schemas.google.com/g/2005";
XNamespace opensearch = @"http://a9.com/-/spec/opensearchrss/1.0/";
XDocument doc = XDocument.Parse(xmlFile);
foreach (XElement entry in doc.Descendants(d + "entry"))
{
Book book = new Book();
foreach (XElement element in entry.Descendants(d + "title"))
{
book.Title = element.Value;
}
foreach (XElement element in entry.Descendants(d + "summary"))
{
book.Summary = element.Value;
}
foreach (XElement element in entry.Descendants(d + "link"))
{
if (element.Attribute("rel").Value == "image")
{
book.Imageurl = element.Attribute("href").Value;
}
else if (element.Attribute("rel").Value == "alternate")
{
book.Weblink = element.Attribute("href").Value;
}
}
//对于加了冒号前缀的元素，使用下列代码
foreach (XElement element in entry.Descendants(db + "attribute"))
{
switch (element.Attribute("name").Value)
{
case "isbn13":
book.Isbn = element.Value;
break;
case "pages":
book.Pages = element.Value;
break;
case "author":
book.Author.Add(element.Value);
break;
case "price":
book.Price = element.Value;
break;
case "publisher":
book.Publisher = element.Value;
break;
case "pubdate":
book.Pubdate = element.Value;
break;
case "author-intro":
book.AuthorIntro = element.Value;
break;
case "binding":
book.Binding = element.Value;
break;
case "translator":
book.Translator.Add(element.Value);
break;
case "subtitle":
book.Subtitle = element.Value;
break;
}
}
foreach (XElement element in entry.Descendants(gd + "rating"))
{
book.Rating.Average= element.Attribute("average").Value;
book.Rating.RatersNum = element.Attribute("numRaters").Value;
}
foreach (XElement element in entry.Descendants(db + "tag"))
{
BookTag tag = new BookTag();
tag.Tag = element.Attribute("name").Value;
tag.Count = element.Attribute("count").Value;
book.Tags.Add(tag);
}
bl.Add(book);
}
return bl;
}
public ItemViewModel()
{
TheBook = new Book();
}
public ItemViewModel(Book book)
{
TheBook = new Book();
TheBook = book;
}
public void UpdateViewModel(Book book)
{
TheBook = book;
}
private void InvalidBook()
{
Dispatcher.BeginInvoke(() =>
{
Book nullBook = new Book();
bookDetailViewModel.UpdateViewModel(nullBook);//null book
this.DataContext = bookDetailViewModel;
noBasicInfo.Visibility = System.Windows.Visibility.Visible;
noSummaryInfo.Visibility = System.Windows.Visibility.Visible;
noReview.Visibility = System.Windows.Visibility.Visible;
noBuyinfo.Visibility = System.Windows.Visibility.Visible;
});
}