How to Dynamically Set the Value of a Hidden Field

On 11 Jul 2006 in macromedia.dreamweaver.appdev, esonline wrote:

> I have an insert form and would like to control the value that is
> inserted for the Primary Key field of the databse. To do this i
> have inserted a Hidden Field which value will be used for the
> Primary Key of the databse.
>
> Now what I would like to do is to dynamically set the value of the
> hidden field when the form is submitted. Therefore when the record
> is inserted the value that i have calculated via code for the hidden
> field is insereted into the database.
>
> I guess my question then is how do you dynamically set the value of
> a hidden field?

Skip the hidden field; do it serverside just before the insert. Anything
which relies on javascript is unreliable and can be spoofed, anyway.

Why do you want to use a key field with semantic value, anyway?

--
Joe Makowiec
http://makowiec.net/
Email: http://makowiec.net/email.php

What language?

In ASP, you can just assign the value you calculate to a variable, and in the hidden field, insert that value with the variable.
<%
DIM varMyVariable
varMyVariable = "Dog" & "Cat" 'sample assignment of a value
%>
Here's the input field.
<input name="hiddenField" type="hidden" value=<%=varMyVariable%> />

The value <%=varMyVariable%> is short way of doing "response.write(varMyVariable)"