private void Button_Click(object sender, RoutedEventArgs e)
{
try// на случай пустой или битой строки
{
if (dataGrid2.SelectedItem != null)
{
var selectedBook = (Book)dataGrid2.SelectedItem;
var tempBook = new BookOrganizer.Book() { Title = selectedBook.Name, Annotation = selectedBook.Annotation, Author = new Author() { Name = selectedBook.Author }, Year = int.Parse(selectedBook.Year), Pages = int.Parse(selectedBook.Pages) };
var v = new AddBookView();
v.DataContext = new AddBookViewModel(tempBook);
((AddBookViewModel)v.DataContext).BookOut += (b) =>
{
using (var c = new Context())
{
if (b.Author != null)
{
var k = c.Authors.FirstOrDefault(p => p.Name == b.Author.Name);
if (k != null) { b.Author = k; }
}
if (b.Genre != null)
{
var t = c.Genres.FirstOrDefault(p => p.Name == b.Genre.Name);
if (t != null) { b.Genre = t; }
}
c.Books.Add(b);
c.SaveChanges();
}
v.Close();
};
v.Show();
}
}
catch { }
}
private void EditBook()
{
if (selectedBook != null)
{
var id = selectedBook.Id;
using (var c = new Context())
{
var bookForEdit = c.Books.Include("Author").Include("Genre").First(p => p.Id == id);
object old = bookForEdit.Clone();
var v = new AddBookView();
v.DataContext = new AddBookViewModel(bookForEdit);
((AddBookViewModel)v.DataContext).BookOut += (b) =>
{
using (var t = new Context())
{
var temp = t.Books.Include("Author").Include("Genre").First(p => p.Id == id);
temp.PullChanges(b);
temp.Author = t.Authors.FirstOrDefault(p => p.Id == temp.Author.Id);
temp.Genre = t.Genres.FirstOrDefault(p => p.Id == temp.Genre.Id);
t.SaveChanges();
}
Undos.Push(new object[] { "unedit", (Book)old });
OnPropertyChanged("UndoIsEnabled");
OpenList(selectedMode);
v.Close();
};
v.ShowDialog();
}
}
}
private void AddBook()
{
var v = new AddBookView();
v.DataContext = new AddBookViewModel(new Book());
((AddBookViewModel)v.DataContext).BookOut += (b) =>
{
AddBookToDB(b);
using (var c = new Context())
{
Undos.Push(new object[] { "delete", c.Books.Include("Author").Include("Genre").First(p => p.Author.Name == b.Author.Name && p.Year == b.Year && p.Title == b.Title) });
OnPropertyChanged("UndoIsEnabled");
}
OpenList(selectedMode);
v.Close();
};
v.ShowDialog();
}