Set Hidden field value in the submit event

Hello,
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I have to send a field data to the Payment Gateway. I have designed a hidden field to store the value. But this value will be the unique key of the data entered by the user inserted in the DB.
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Upon submit, I have a DB Save event that saves the submitted data. I then read the unique key of the record just saved and set the form data for the hidden field name. Then the payment gateway action is setup.
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But the hidden field is not passed correctly. How could this be setup correctly?
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Regards,
Anu

Hi Anu,
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As you don't know the unique key until after the form data is saved you don't need to use a hidden input for the value.
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And I do not understand the series of DB Saves and DB Reads that you are using. The uid (if that is the key you are using*) will be available in the form data after the first DB Save. You can use a Debugger action to see the value and check.
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You should then be able to reference that value directly in whatever action you are using to connect to the Payment Gateway (I don't see that in your post).
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Bob
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* Personally I find the CF generated UIDs a bit long for some purposes and prefer to use shorter random strings - in that case you do need a DB Read loop to check for uniqueness. My Unique ID [GH] action for CFv5 could handle that for you.

Hi GreyHead,
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In the Payment Gateway action the field is set using the following code:
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$postFields .= "&udf1=".$_REQUEST['cname'];

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So, the form data is not getting passed to the action. Can I modify the code to read the form data?
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Regards,
Anu

Hi GreyHead,
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Thanks for the heads up. I modified the code of the actions to read the form data instead of the $_REQUEST array and it worked.
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Thanks for your support.
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Regards,
Anu