private void button1_Click(object sender, EventArgs e)
{
AddUser addUser = new AddUser();
DialogResult result = addUser.ShowDialog(this);
User user = new User();
if (result == DialogResult.Cancel)
Hide();
if (result == DialogResult.OK)
{
user.firstname = addUser.textBox1.Text;
user.name = addUser.textBox2.Text;
user.lastname = addUser.textBox3.Text;
user.id_book = listBook.Find(ob => ob.name == addUser.comboBox1.Text).id_book;
db_lab4Entities db = new db_lab4Entities();
db.Users.Add(user);
db.SaveChanges();
dataGridView1.Refresh();
Refresh();
MessageBox.Show("Добавлена новая книга!");
}
}
private void button2_Click(object sender, EventArgs e)
{
if (dataGridView1.SelectedRows.Count > 0)
{
int index = dataGridView1.SelectedRows[0].Index;
int id = 0;
bool converted = Int32.TryParse(dataGridView1[0, index].Value.ToString(), out id);
if (converted == false)
return;
User user = db.Users.Find(id);
AddUser addUser = new AddUser();
addUser.textBox1.Text = user.firstname;
addUser.textBox2.Text = user.name;
addUser.textBox3.Text = user.lastname;
addUser.comboBox1.Text = listBook.Find(ob => ob.id_book == user.id_book).name;
DialogResult result = addUser.ShowDialog(this);
if (result == DialogResult.Cancel)
Hide();
user.firstname = addUser.textBox1.Text;
user.name = addUser.textBox2.Text;
user.lastname = addUser.textBox3.Text;
user.id_book = listBook.Find(ob => ob.name == addUser.comboBox1.Text).id_book;
db.SaveChanges();
dataGridView1.Refresh();
Refresh();
MessageBox.Show("Объект обновлен");
}
}