private void button1_Click(object sender, EventArgs e)
{
PlayerForm plForm = new PlayerForm();
// добавляем список команд в на форму plForm
List<Team> teams = db.Teams.ToList();
plForm.listBox1.DataSource = teams;
plForm.listBox1.ValueMember = "Id";
plForm.listBox1.DisplayMember = "Name";
DialogResult result = plForm.ShowDialog(this);
if (result == DialogResult.Cancel)
return;
Player player = new Player();
player.Age = (int)plForm.numericUpDown1.Value;
player.Name = plForm.textBox1.Text;
teams.Clear(); // очищаем список и заново заполняем его выделенными элементами
foreach (var item in plForm.listBox1.SelectedItems)
{
teams.Add((Team)item);
}
player.Teams = teams;
db.Players.Add(player);
db.SaveChanges();
MessageBox.Show("Новый игрок добавлен");
}
private void button2_Click(object sender, EventArgs e)
{
if (dataGridView1.SelectedRows.Count < 1)
return;
int index = dataGridView1.SelectedRows[0].Index;
int id = 0;
bool converted = Int32.TryParse(dataGridView1[0, index].Value.ToString(), out id);
if (converted == false)
return;
Player player = db.Players.Find(id);
PlayerForm plForm = new PlayerForm();
plForm.numericUpDown1.Value = player.Age;
plForm.textBox1.Text = player.Name;
// получаем список команд
List<Team> teams = db.Teams.ToList();
plForm.listBox1.DataSource = teams;
plForm.listBox1.ValueMember = "Id";
plForm.listBox1.DisplayMember = "Name";
foreach (Team t in player.Teams)
plForm.listBox1.SelectedItem = t;
DialogResult result = plForm.ShowDialog(this);
if (result == DialogResult.Cancel)
return;
player.Age = (int)plForm.numericUpDown1.Value;
player.Name = plForm.textBox1.Text;
// проверяем наличие команд у игрока
foreach (var team in teams)
{
if (plForm.listBox1.SelectedItems.Contains(team))
{
if (!player.Teams.Contains(team))
player.Teams.Add(team);
}
else
{
if (player.Teams.Contains(team))
player.Teams.Remove(team);
}
}
db.Entry(player).State = EntityState.Modified;
db.SaveChanges();
MessageBox.Show("Информация обновлена");
}
