If you are using VB Script, then On Error works on the server side, but by that time it's already been posted to the server.

The best way is use Javascript or VB Script on the client and validate it before the form is submitted. Check out http://msdn.microsoft.com/scripting/
for help on writing client side scripts.

Another good source is www.javascripts.com for cut & paste examples for the beginner.


>How do you handle error in an ASP file. (ex. a required field that is missing and you want reload the page but with an error message at the beginning).
>
>Thanks.