private void button5_Click(object sender, EventArgs e)
{
if (dataGridView2.SelectedRows.Count > 0)
{
int index = dataGridView2.SelectedRows[0].Index;
int id = 0;
bool converted = Int32.TryParse(dataGridView2[0, index].Value.ToString(), out id);
if (converted == false)
{
return;
}
Authos au = db.Authos.Find(id);
db.Authos.Remove(au);
db.SaveChanges();
MessageBox.Show("Объект удален");
}
else
{
MessageBox.Show("Выберите строку таблицы)!", "Предупреждение", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
}
private void button7_Click(object sender, EventArgs e)
{
addau adu = new addau();
DialogResult result = adu.ShowDialog(this);
if (result == DialogResult.Cancel)
{
return;
}
Authos au = new Authos();
au.idauthor = int.Parse(adu.textBox1.Text);
au.lastname = adu.textBox2.Text;
au.firstname = adu.textBox3.Text;
au.backname = adu.textBox4.Text;
au.birthyear = int.Parse(adu.textBox5.Text);
au.deathyear = int.Parse(adu.textBox6.Text);
db.Authos.Add(au);
db.SaveChanges();
MessageBox.Show("Новый объект добавлен");
}
private void button6_Click(object sender, EventArgs e)
{
if (dataGridView2.SelectedRows.Count > 0)
{
int index = dataGridView2.SelectedRows[0].Index;
int id = 0;
bool converted = Int32.TryParse(dataGridView2[0, index].Value.ToString(), out id);
if (converted == false)
{
return;
}
Authos au = db.Authos.Find(id);
addau adu = new addau();
adu.textBox1.Text = au.idauthor.ToString();
adu.textBox2.Text = au.lastname;
adu.textBox3.Text = au.firstname;
adu.textBox4.Text = au.backname;
adu.textBox5.Text = au.birthyear.ToString();
adu.textBox6.Text = au.deathyear.ToString();
DialogResult result = adu.ShowDialog(this);
if (result == DialogResult.Cancel)
{
return;
}
au.idauthor = int.Parse(adu.textBox1.Text);
au.lastname = adu.textBox2.Text;
au.firstname = adu.textBox3.Text;
au.backname = adu.textBox4.Text;
au.birthyear = int.Parse(adu.textBox5.Text);
au.deathyear = int.Parse(adu.textBox6.Text);
db.SaveChanges();
dataGridView2.Refresh(); // обновляем грид
MessageBox.Show("Объект обновлен");
}
}