Iterate tag update

[Vaibhav Patil]

Hi,
    I am using logic:iterate tag as follows to print a table with text
boxes. 

        <logic:iterate id="product" name="productSearchForm"
property="productList">
        <tr>
          <td align="left">
            <bean:write name="product" property="productNumber"
filter="true"/>
          </td>
          <td align="center">
            <html:text name="product" property="quantity" size="3"/>
          </td>
        </tr>
        </logic:iterate>

I have a array of objets(Product) in productList. When I update the quantity
and submit the page, it does not update the information into the
productList.
    What might be the problem???

Vaibhav