public async void Remove(BookMark bookmark)
{
using (var ctx = new Context())
{
ctx.Bookmarks.Attach(bookmark);
ctx.Bookmarks.Remove(bookmark);
await ctx.SaveChangesAsync();
}
}
public async Task<BookMark> AddAsync(BookMark book)
{
using (var ctx = new Context())
{
var added = ctx.Bookmarks.Add(book);
await ctx.SaveChangesAsync();
return added.Entity;
}
}
private void BookMarkPage(object parameter)
{
var page = PdfPages[Convert.ToInt32(parameter)] as PdfPageViewModel;
if (page == null) return;
if (page.BookMark)
{
page.BookMark = false;
//If bookmark exists, delete it and update
var existingBookMark = SelectedBook.BookMarks.FirstOrDefault(x => x.PageNumber == page.PageNumber);
if (existingBookMark != null)
{
_bookMarkService.Remove(existingBookMark);
SelectedBook.BookMarks.Remove(existingBookMark);
NotifyPropertyChanged("SelectedBook");
}
ShellViewModel.ShowMessage("Bookmark Removed", null);
}
else
{
page.BookMark = true;
//if bookmark doesnt exists, add it and update.
var existingBookMark = SelectedBook.BookMarks.FirstOrDefault(x => x.PageNumber == page.PageNumber);
if (existingBookMark == null)
{
var bookmark = new BookMark
{
Book = SelectedBook,
PageNumber = Convert.ToInt32(page.PageNumber)
};
SelectedBook.BookMarks.Add(bookmark);
NotifyPropertyChanged("SelectedBook");
_bookMarkService.Add(bookmark);
}
ShellViewModel.ShowMessage("Bookmark Added", null);
}
UpdateBookmarks();
}
public void Remove(BookMark bookmark)
{
_repository.Remove(bookmark);
}
public void Update(BookMark book)
{
_repository.Update(book);
}
public BookMark Add(BookMark book)
{
return _repository.AddAsync(book).Result;
}
