private void InitBook()
{
_dtpPublishDay.Format = DateTimePickerFormat.Custom;
_dtpPublishDay.CustomFormat = "yyyy";
_olvColumnDatePublisher.AspectToStringConverter = (o) =>
{
var date = Convert.ToDateTime(o);
return(date.ToString("yyyy"));
};
if (_selectedBook != null)
{
_txtName.Text = _selectedBook.Name;
_txtAuthor.Text = _selectedBook.Author;
_dtpPublishDay.Value = _selectedBook.DatePublisher;
_txtCountPage.Text = _selectedBook.CountPage.ToString();
_txtTotalCount.Text = _selectedBook.TotalCount.ToString();
}
_btnAddBook.Click += (sender, args) =>
{
if (string.IsNullOrEmpty(_txtName.Text) || string.IsNullOrEmpty(_txtAuthor.Text) || string.IsNullOrEmpty(_txtCountPage.Text) || string.IsNullOrEmpty(_txtTotalCount.Text))
{
MessageBox.Show("Заполните все поля", "Внимание", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
try
{
using (var context = new BookContext())
{
_selectedBook = new Core.Book(_txtName.Text, _txtAuthor.Text, Convert.ToInt32(_txtCountPage.Text), _dtpPublishDay.Value, Convert.ToInt32(_txtTotalCount.Text));
context.Books.AddOrUpdate(_selectedBook);
context.SaveChanges();
_objectListViewBook.SetObjects(context.Books);
ResetBook();
};
}
catch (Exception ex)
{
MessageBox.Show("Ошибка: " + ex.Message);
}
};
_btnUpdateBook.Click += (sender, args) =>
{
try
{
using (var context = new BookContext())
{
var bookForUpdate = _objectListViewBook.SelectedObject as Core.Book;
if (bookForUpdate == null)
{
MessageBox.Show("Укажите книгу для редактирования", "Внимание", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
bookForUpdate.Name = _txtName.Text;
bookForUpdate.Author = _txtAuthor.Text;
bookForUpdate.CountPage = Convert.ToInt32(_txtCountPage.Text);
bookForUpdate.DatePublisher = _dtpPublishDay.Value;
bookForUpdate.TotalCount = Convert.ToInt32(_txtTotalCount.Text);
context.Books.AddOrUpdate(bookForUpdate);
context.SaveChanges();
_objectListViewBook.SetObjects(context.Books);
ResetBook();
}
}
catch (Exception ex)
{
MessageBox.Show("Ошибка: " + ex.Message);
}
};
_btnDeleteBook.Click += (sender, args) =>
{
try
{
using (var context = new BookContext())
{
var deleteBook = _objectListViewBook.SelectedObject as Core.Book;
if (deleteBook == null)
{
MessageBox.Show("Укажите книгу", "Внимание", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
if (MessageBox.Show($"Удалить книгу '{deleteBook.Name}' ?",
"Удаление", MessageBoxButtons.YesNo, MessageBoxIcon.Question) != DialogResult.Yes)
{
return;
}
deleteBook = context.Books.First(w => w.Id == deleteBook.Id);
context.Books.Remove(deleteBook);
context.SaveChanges();
_objectListViewBook.SetObjects(context.Books);
ResetBook();
};
}
catch (Exception ex)
{
MessageBox.Show("Ошибка: " + ex.Message);
}
};
_objectListViewBook.SelectedIndexChanged += (sender, args) =>
{
Core.Book selectedBook = _objectListViewBook.SelectedObject as Core.Book;
if (selectedBook == null)
{
return;
}
_txtName.Text = selectedBook.Name;
_txtAuthor.Text = selectedBook.Author;
_txtCountPage.Text = selectedBook.CountPage.ToString();
_dtpPublishDay.Value = selectedBook.DatePublisher;
_txtTotalCount.Text = selectedBook.TotalCount.ToString();
};
}
public void InitGiveBook()
{
_olvColumnDatePublisher.AspectToStringConverter = (o) =>
{
var date = Convert.ToDateTime(o);
return(date.ToString("yyyy"));
};
try
{
using (var context = new BookContext())
{
_objectListViewBooks.SetObjects(context.Books);
}
_txtBookSearch.TextChanged += (sender, args) =>
{
using (var context = new BookContext())
{
if (string.IsNullOrEmpty(_txtBookSearch.Text))
{
_objectListViewBooks.SetObjects(context.Books);
return;
}
var books = context.Books.Where(d => d.Name.ToLower().StartsWith(_txtBookSearch.Text.ToLower()) ||
d.Author.ToLower().StartsWith(_txtBookSearch.Text.ToLower())).Take(100);
_objectListViewBooks.SetObjects(books);
}
};
}
catch (Exception ex)
{
MessageBox.Show("Ошибка: " + ex.Message);
}
_objectListViewBooks.SelectedIndexChanged += (sender, args) =>
{
Core.Book selectedBook = _objectListViewBooks.SelectedObject as Core.Book;
if (selectedBook == null)
{
return;
}
};
_btnGiveBook.Click += (sender, args) =>
{
try
{
using (var context = new BookContext())
{
var reader = context.Readers.Include("Books").First(f => f.Id == _selectedReader.Id);
Core.Book selectedBook = _objectListViewBooks.SelectedObject as Core.Book;
if (selectedBook == null)
{
MessageBox.Show("Укажите книгу для выдачи", "Внимание", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
if (MessageBox.Show($"Выдать книгу '{selectedBook.Name}', '{selectedBook.Author}' ?",
"Удаление", MessageBoxButtons.YesNo, MessageBoxIcon.Question) != DialogResult.Yes)
{
return;
}
selectedBook = context.Books.First(b => b.Id == selectedBook.Id);
if (reader.Books.Any(book => book.Id == selectedBook.Id))
{
MessageBox.Show("У читателя есть такая книга", "Внимание", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
if (selectedBook.StayCount < 1)
{
MessageBox.Show("Все экземпляры книг выданы", "Внимание", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
reader.AddBook(selectedBook);
context.SaveChanges();
_objectListViewBooks.SetObjects(context.Books);
MessageBox.Show("Книга выдана, спасибо!", "Внимание");
}
}
catch (Exception ex)
{
MessageBox.Show("Ошибка: " + ex.Message);
}
Close();
};
}