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I am not entirely sure what you meant about that. But yes, you can create a hidden text box and simply prepopulate it via the URL parameter. Here's a guide about prepopulating URL: https://www.jotform.com/help/71-Prepopulating-Fields-to-Your-JotForm-via-URL-Parameters
You can also use conditional logic to show/hide different text boxes depending on some rules set: https://www.jotform.com/help/57-Smart-Forms-Using-Conditional-Logic
We could help you further, but we need to learn more how your process flow works.
I hope that helps.
Hi, the text box shouldn't be hidden, but must accept only few numbers.
The purpose of this is to create a box that check Unique Validation Code, previously assigned to each user.
Every user must enter his own Code to fill the form, without the right Code isn't possible to complete the form.
Just for example:
John as the Code 1234
Will as the Code 2345
Karl as the Code 3456
The text box only accept this three Code.
Thank you for providing more information about your issue. Actually, it is possible with creating a condition.
First of all, you can add the textbox fields as you see below:
After that, you can create conditions as you see below:
At that situation, it will work properly.
Here is how it works n my side:
You can clone your demo form.
If you have any question or issues, please do not hesitate contacting us. We will be glad to assist you.