Re: [REDCap Open] Abridged summary of redcap_open@googlegroups.com - 2 updates in 1 topic

[Amit Tandon]

Have you tried HIDESUBMIT Action Tags - v3.1.0. In addition, you can use [current-instance] <= 3 in Form Display logic. The presumption is tha we are repeating fixed 3 times and [current-instance] <= [day0_arm_1][controlling_variable] it is dependent on any input variable

On Tue, Mar 17, 2026 at 1:53 AM <redca...@googlegroups.com> wrote:

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• Repeating parent form containing repeating child form - 2 Updates

Repeating parent form containing repeating child form

David Edwards <dw...@hotmail.com>: Mar 16 02:28PM Hi all,   I'm currently trying out a few things before starting a project, just to see what's possible...   I need to make a parent form which repeats daily, with a child form which repeats 0 to x ...more

David Edwards <dw...@hotmail.com>: Mar 16 06:53PM Update: I was looking at different ways of combining repeating forms and events earlier, and I realised I'm over complicating it - all I need to do is combine the parent/child forms into one form with ...more

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Thanks and Regards

amit

[David Edwards]

Hi Amit,

Yes Amit - good call ...

On the version I've done that uses instance tables, if they limit's been reached, I use @HIDESUBMIT and branching logic on a descriptive field in the instance table pop-up to tell them they've reached the limit and can't add another. I also hide all the input fields so all they can do is click "Cancel".

In an ideal world though, I'd rather they can't even attempt to add another, but I just couldn't get that to work.

Thanks for your reply,

David.

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From: redca...@googlegroups.com <redca...@googlegroups.com> on behalf of Amit Tandon <amit....@celworld.org>
Sent: 17 March 2026 08:34
To: redca...@googlegroups.com <redca...@googlegroups.com>
Subject: Re: [REDCap Open] Abridged summary of redca...@googlegroups.com - 2 updates in 1 topic

 

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[Amit Tandon]

Hi David

How about using Form display logic to control the iterations

Thanks and Regards

amit

[David Edwards]

Hmmm - that's an interesting idea Amit.

I never thought of that with an instance table form. I'll give that a try and I'll report back later.

Thanks!,

David.

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From: Amit Tandon <amit....@celworld.org>
Sent: 17 March 2026 10:27
To: David Edwards <dw...@hotmail.com>
Cc: redcap open <redca...@googlegroups.com>

[David Edwards]

I gave it a try Amit.

I added the same logic which hides the fields in the instance pop-up into the form display logic. For some reason it always hid every instance of the pop-up after the first. I tried adding in [curren-instance] and the event arm, but always the same result. I think it must be something peculiar to how FDL works in instance pop-ups.

But a I was doing it I realised something - even if I could prevent the popup window appearing, I'd still be left with the "Add+" button on the parent form.

So all things considered, I'm going to go with the approach of having it all on one form and just hiding/showing 10 sections. It's not very elegant, but it does what I need it to with no loose ends.

Thank you for taking the time to help. 

David.

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From: David Edwards <dw...@hotmail.com>
Sent: 17 March 2026 10:39
To: Amit Tandon <amit....@celworld.org>

[Amit Tandon]

Dear David,

I am not an expert. But this is working. I do  get a + button when I view the Record Status Dashboard. But when I click on that + button, it takes to the individual record dashboard with + button disabled. Similarly if i have opened a repeating instance form, the Add New button is disabled when i hit the threshold. So, the user cannot enter an extra record

[David Edwards]

Hi Amit, 

I'm not sure why that would be.

Maybe we tested it slightly differently.

I was testing it from a new parent form with the instance table embedded in a field and the "Add+" button under it.

When I added a form display logic rule for the instance table form, it let me add one instance table form, but the rest showed up as pop-ups containing the record dashboard (no matter what I had X set to).

I tired prefixing with the [{event name}] and suffixing with the [current-instance] but nothing worked.

That's the specific scenario I needed it to work in, so I had to abandon it.

Maybe I did something wrong - I don't know.

Nonetheless, I've decided to go with the 10 hidden sections approach now, so I'll persevere down that road now.

Thanks again for your help,

David.

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From: Amit Tandon <amit....@celworld.org>
Sent: 17 March 2026 16:33