private void buttonChangeBook_Click(object sender, EventArgs e)
{
if ((textBoxTitle.Text != "") && (comboBoxAuthor.SelectedItem != null) && (comboBoxGenre.SelectedItem != null))
{
if (book.Name != textBoxTitle.Text)
{
book.Name = textBoxTitle.Text;
}
if (comboBoxAuthor.SelectedIndex != 0)
{
book.Author = model.AuthorSet.Find(model.AuthorSet.Where(x =>
(x.Surname + " " + x.Name + " " + x.SecondName + " - " + x.Country1.Name).Contains(
comboBoxAuthor
.Text)).ToList()[0].Id);
}
if (comboBoxGenre.SelectedIndex != 0)
{
book.Genre = model.GenreSet.Find(model.GenreSet.Where(x =>
x.Name.Contains(comboBoxGenre.Text)).ToList()[0].Id);
}
if (book.Description != textBoxBookDescription.Text)
{
book.Description = textBoxBookDescription.Text;
}
model.SaveChanges();
ParentAdminMainMenu.ShowTable();
ParentAdminMainMenu.Show();
Close();
}
else
{
if (textBoxTitle.Text == "")
{
MessageBox.Show("Вы не указали название книги");
}
if (comboBoxAuthor.SelectedItem == null)
{
MessageBox.Show("Вы не указали автора");
}
if (comboBoxGenre.SelectedItem == null)
{
MessageBox.Show("Вы не указали жанр");
}
}
}
private void buttonAddBook_Click(object sender, EventArgs e)
{
var books = model.BooksSet.Where(u => u.Name.Contains(textBoxTitle.Text)).ToList();
if (books.Count <= 0)
{
if ((textBoxTitle.Text != "") && (comboBoxAuthor.SelectedItem != null) &&
(comboBoxGenre.SelectedItem != null))
{
Books book = new Books()
{
Name = textBoxTitle.Text,
Description = textBoxBookDescription.Text,
Author = model.AuthorSet.Find(model.AuthorSet.Where(x =>
(x.Surname + " " + x.Name + " " + x.SecondName + " - " + x.Country1.Name).Contains(
comboBoxAuthor.Text)).ToList()[0].Id),
Genre = model.GenreSet.Find(
model.GenreSet.Where(x => x.Name.Contains(comboBoxGenre.Text)).ToList()[0].Id),
};
model.BooksSet.Add(book);
model.SaveChanges();
ParentAdminMainMenu.ShowTable();
ParentAdminMainMenu.Show();
Close();
}
else
{
if (textBoxTitle.Text == "")
{
MessageBox.Show("Вы не указали название книги");
}
if (comboBoxAuthor.SelectedItem == null)
{
MessageBox.Show("Вы не выбрали автора");
}
if (comboBoxGenre.SelectedItem == null)
{
MessageBox.Show("Вы не выбрали жанр");
}
}
}
else
{
MessageBox.Show("Книга с указанным названием уже существует");
return;
}
}
