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Custom Cards to Forms

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Posted on by BenGillard

I have an Multiple Forms which are being submitted to a SP Online list using a patch Formula as below:

Patch('Ellipse Booking Form 2',Defaults('Ellipse Booking Form 2'),Form1.Updates,Form1_1.Updates,Form1_2.Updates,Form3.Updates,Form3_1.Updates)

This is fine.

What I have now done is added a Custom Card to one of my Forms (which i have added a drop down control too). I want the new Drop Down to populate one of my Columns in the same SP list that all the other data is being uploaded too, but i dont know how to get this card to do that.

I have changed the DataField to "mycolumnname" and changed the display name. What else am i missing? Thanks

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timl 37,248 Super User 2026 Season 1 on at

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Hi @BenGillard

The thing you're probably missing is the Update property setting on your custom card.

This property defines what value to set for your DataField property. You'll need to provide an Update setting that returns the selected value of your new drop down control.

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R3dKap 1,594 on at

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Hi @BenGillard,
Maybe your approach is not the good one. Why don't you want to use the "Add datacard" native feature and choose the corresponding field ? Is it located in another datasource than the one of the form ?
Emmanuel

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BenGillard on at

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Yes I want to pull data from an alternative list column, filter it then when the users selects an option it populates the other list along with the rest of the data?

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BenGillard on at

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I am not seeing the update field on my data card that I have added? Any ideas

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R3dKap 1,594 on at

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Ok, so if I summarize what you're trying to acheive here:
you have a form Form1 connected to List1
you have another list called List2 in which you have a field MyField
in Form1 you want to have a datacard that pulls/saves data from/to MyField in List2
If this is what you're trying to do, just know that you will not be able to manage your MyField in List2 like a "classic" datacard in Form1. List1 is the only datasource that will be available for your datacards inside Form1. That's why you don't see MyField when adding a new datacard in Form1.
This means that, like you started to do it, you will have to add a custom datacard DataCard_MyField inside Form1, insert a dropdown in it (ddlMyField), and manage manually the pulling and the saving of its content from/to List2.
So, as a starter, you could:
set the Items property of ddlMyField to whatever your want to have as items in your dropdown
set the Default property of ddlMyField to something like: LookUp(List2,<your condition>).MyField (maybe add ".Value" after this if needed)
add a call to the Patch() function inside the OnSuccess event of Form1 in order to save the content of ddlMyField in List2
Is this of any help to you ?
Emmanuel

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timl 37,248 Super User 2026 Season 1 on at

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I'm not sure why you don't see the Update field on your data card. Could you screenshot the Advanced properties of your data card and post it here?

@BenGillard wrote:
I am not seeing the update field on my data card that I have added? Any ideas

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BenGillard on at

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timl 37,248 Super User 2026 Season 1 on at

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Hi @BenGillard

Thanks for uploading the screenshot. Unfortuantely, I think this a bug in PowerApps. The Update property used to always be there.

As a workaround, could you unlock and customise the default data card for the field that you want to update in SharePoint? If you unlock the data card with an Update property set, hopefully the property will still be visible and modifiable once you unlock it.

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RandyHayes 76,299 Super User 2024 Season 1 on at

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@timlare you sure on that? I hadn't seen the update property (or several others) on a CustomData card before - but, my memory doesn't always recall these things.
Definitely have seen it on a card that is based on a field that was unlocked. But, on a fresh custom one, I don't think the logic is in the Form to be able to handle that well.
In fact, there are several properties that may or may not appear on the DataCard (not talking about custom cards), depending on the Control Type that was originally selected for the card.

So, you are spot on with the workaround...put on a field that is known, set the control type you want, and then unlock and customize away.

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timl 37,248 Super User 2026 Season 1 on at

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@RandyHayes - now you mention it, I'm not 100% sure. Having said that, that section of the designer has changed alot in the time that I've been using PowerApps so I'm easily mistaken.

If @BenGillard unlocks the card for the field he wants to modifying and customises that, hopefully that'll solve the problem.

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