private void btnGo_Click(object sender, EventArgs e)
{
var itm = new Item();
if (!grpByItems.Checked)
gridDetailReport.DataSource = itm.GetExpiredItemsByReceivedDate(Convert.ToInt32(lkMode.EditValue), Convert.ToDateTime(dateFrom.Text), Convert.ToDateTime(dateTo.Text), Convert.ToInt32(lkWarehouse.EditValue));
}