How to Set value in Textarea from PHP

Quote Reena_Aggarwal:

hello

I have created a page using Record Builder and then i have added a new additional textarea on same page . Now the values that user enter in textarea are accessible in After Execute Insert,Update, Delete Events

But i am not able to set any value in Textarea in Before Show Event using Setvalue function.
The error generated is -

Fatal error: Call to a member function on a non-object in d:\_questio_maint_events.php on line 134

Please tell us how can we set the value in textarea using PHP code

Thanks
Reena