private void BtnChange_Click(object sender, EventArgs e)
{
if (this.dataGridView1.SelectedRows.Count != 1)
{
MessageBox.Show("Выберите одну строку");
return;
}
var selectedId = this.dataGridView1.SelectedRows[0].Cells["Id"].Value;
Customer selected = db.Customers.Find(selectedId);
CustomerDetailForm add = new CustomerDetailForm(this.db, selected);
add.Show();
}
private void BtnAdd_Click(object sender, EventArgs e)
{
CustomerDetailForm add = new CustomerDetailForm(this.db);
add.Show();
}