private void button2_Click(object sender, EventArgs e)
{
var brak = new OperationForm();
brak.Show();
Close();
}
private void button1_Click(object sender, EventArgs e)
{
var indexW = Convert.ToInt32(comboBox1.SelectedValue.ToString());
var indext = Convert.ToInt32(comboBox2.SelectedValue.ToString());
dataBase.operationupd(indexW, indext, textBox2.Text, Convert.ToInt32(textBox2.Text),
Convert.ToInt32(textBox3.Text), _id);
var brak = new OperationForm();
brak.Show();
Close();
}