public void OnBookAdded(object source, NewBookArgs new_book)
{
int index = collection.Count() + 1;
new_book.Book.Id = index;
Collection.Add(new_book.Book);
model = new source_library();
model.insert_book(new_book.Book.Id, new_book.Book.Author, new_book.Book.Title, new_book.Book.Year);
add_edit_view.Hide();
}
public void Edit_selectedBook(object source, EditBookArgs args)
{
Selected_item.Author = args.Author;
Selected_item.Title = args.Title;
Selected_item.Year = args.Year;
Book edited = Selected_item;
int id = Selected_item.Id;
id--;
Collection.RemoveAt(id);
Collection.Insert(id, edited);
Selected_item = edited;
model = new source_library();
model.edit_book(selected_item.Id, selected_item.Author, selected_item.Title, selected_item.Year);
add_edit_view.Hide();
}
public BookViewModel()
{
source_library model = new source_library();
dtb1 = model.dtb1;
////
collection = new ObservableCollection <Book>();
selected_item = new Book();
_selected = new Combobox_values("");
Author_block = "";
Title_block = "";
foreach (DataRow dr in dtb1.Rows)
{
int index = dtb1.Rows.IndexOf(dr);
int id = (int)dtb1.Rows[index][0];
string addauthor = dtb1.Rows[index][1].ToString();
string addtitle = dtb1.Rows[index][2].ToString();
string addyear = dtb1.Rows[index][3].ToString();
Collection.Add(new Book {
Id = id, Author = addauthor, Title = addtitle, Year = addyear, Selected = false
});
}
this._Book = CollectionViewSource.GetDefaultView(Collection);
FilterCommand = new Command(filter);
ClearCommand = new Command(clear);
DeleteCommand = new Command(delete_selected);
AddnewbookCommand = new Command(add_book);
EditnewbookCommand = new Command(edit_book);
values = new ObservableCollection <Combobox_values>();
values.Add(new Combobox_values(""));
todelete = new ObservableCollection <Book>();
for (int i = DateTime.Now.Year; i > 1700; i--)
{
values.Add(new Combobox_values(i.ToString()));
}
allselected = false;
child_addbook = new AddBookViewModel();
add_edit_view = new edit_add_dialog();
child_addbook.BookAdded += this.OnBookAdded;
child_addbook.WindowClosed += this.Close_childwindow;
}
public void delete_selected()
{
if (todelete.Count() == 0 || todelete == null)
{
MessageBox.Show("No items to delete.");
}
else
{
MessageBoxResult messageBoxResult = System.Windows.MessageBox.Show("Do you want to delete selected items?", "Delete Confirmation", System.Windows.MessageBoxButton.YesNo);
if (messageBoxResult == MessageBoxResult.Yes)
{
foreach (var b in todelete)
{
int idd = b.Id;
model = new source_library();
model.delete_book(b.Id);
bool z = Collection.Remove(collection.Where(i => i.Id == b.Id).Single());
if (z == true)
{
model.delete_book(b.Id);
}
}
for (int i = 0; i <= (Collection.Count() - 1); i++)
{
Collection.ElementAt(i).Id = i + 1;
}
model.clear();
foreach (var b in Collection)
{
model.insert_book(b.Id, b.Author, b.Title, b.Year);
}
todelete = new ObservableCollection <Book>();
}
}
}
