private void PopulateItems()
{
Item aItem = aStockOutManager.GetItemWithQuantity(Convert.ToInt32(itemDropDownList.SelectedValue));
reorderLavelTextBox.Text = aItem.Reorder.ToString();
availableQuantityTextBox.Text = aItem.AvailableQuantity.ToString();
idHiddenField.Value = aItem.Id.ToString();
}