private void cbSupplier_SelectedIndexChanged(object sender, EventArgs e)
 {
     if (cbSupplier.SelectedIndex != -1)
     {
         Inventory inventory = new SCANINOUTBL.Inventory();
         dgvData.AutoGenerateColumns = false;
         dgvData.DataSource          = inventory.GetReorderQty(cbSupplier.SelectedValue.ToString(), cbDays.Text == "" ? "0" : cbDays.Text, out listoflocalSKU);
     }
 }