private void СomboBox1_SelectedValueChanged(object sender, EventArgs e)
        {
            dataGridView1.Rows.Clear();
            if (comboBox1.SelectedValue != null)
            {
                column1.DataSource = Execute($"SELECT id_customer, Name_customer FROM a_stroy.customer where id_customer = {comboBox1.SelectedValue};");
                column1.DisplayMember = "Name_customer";
                column1.ValueMember = "id_customer";
            }
        }
 
        private void dataGridView1_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)
        {
            ComboBox cbDgv = e.Control as ComboBox;
            cbDgv.SelectedValueChanged -= CbDgv_SelectedValueChanged;
            cbDgv.SelectedValueChanged += CbDgv_SelectedValueChanged;
        }