how to keep goods'info in invoice form?
<p>I use three tables to save invoices:</p>

<ol>
<li>Invoice</li>
<li>InvoiceDetail</li>
<li>TempInvoiceDetail</li>
</ol>

<p>when user add goods i add goods in TempInvoiceDetail.</p>

<p>then user select all goods and click on "Save Invoice".</p>

<p>i add one row in Invoice then move all row from TempInvoiceDetail to InvoiceDetail
,then Delete TempInvoiceDetail.</p>

<p>i save userid
is it true?
do u have any idea?</p>
