--On Mittwoch, 9. Juli 2003 16:59 Uhr +0800 Chan YH <cyhoong@pc.jaring.my> wrote:

I appreciate if someone can show me how to do calculations in DTML. I am having a problem with Total variable in the example below.

Data_form ----------- <form method="post" action="Data_validate"> <table> <tr><td> Enter quantity: </td> <td><input type="int" name="quantity" value="1" /></td> type="text" name="quantity:int" </tr>

<tr><td> Enter Price: </td> <td><input type="int" name="price" value="1" /></td> type="text" name="price:int"

</tr> <tr> <td><input type="submit" name="submit" value="Submit" /></td> </tr> </table>

Data_validate Method ---------------------- Price is <dtml-var price> <br /> Quantity is <dtml-var quantity> <br />

Total is <dtml-let expr="Total=price * quantity"></dtml-let> <br /> Total is <dtml-var "price*quantity">

-aj P.S. I recommend to refer to the Zope Book since your problems are explained there.