Multi-select combo box is adding an additional entry after save

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Posted on by BG-15041758-0

Hello,

I have a multi-select field and am using a combo box on the app. There are hidden fields that show based on selection. When I go to view a saved form that had multiple selections, the combo box now had an additional selection and the hidden fields are not showing. The checked selection is the new one. The field doesn't allow for additional selections and search is off on the field. Has anyone seen this?

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BCBuizer 22,798 Super User 2026 Season 1 on at

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Hi @BG-15041758-0,

What I think is happening that when saving the form, the selected items in the combobox are saved as a comma separated string. Then, when viewing the saved form, the string is not converted back into the individual items, which is causing the behaviour as can be seen in your screenshot.

To fix this, try changing the formula for the DefaultSelectedItems property of the combobox to:

Split( Parent.Default, ", " )

I have used Parent.Default as I assume the combobox is inside a datacard within a form control, but if it is not, you can replace that line with whatever is currently set for the DefaultSelectedItems property.

Once this is working, the conditional visiblity of the other fields should be restored as well.

Please share the full code of the combobx (right click the control in the tree view and then select View code) if you need additional support.

If this reply helped you in any way, please give it a Like 💜 and in case it resolved your issue, please mark it as the Verified Answer ✅.

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BCBuizer 22,798 Super User 2026 Season 1 on at

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Hi @BG-15041758-0,

Hopefull, you have been able to get your issue resolved with the response I gave earlier. If so, please mark it as the Verified Answer for the benefit of the wider community.

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BG-15041758-0 48 on at

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Hi @BCBuizer,

It didn't work. I did paste the code, but it didn't seem to go through so I'm attaching it again

- FacilityDD:

Control: ModernCombobox@1.1.0

Properties:

Appearance: =Appearance.FilledLighter

BorderColor: =RGBA(109, 110, 113, 1)

BorderStyle: =BorderStyle.Solid

BorderThickness: =1

Color: =RGBA(0, 0, 0, 1)

DefaultSelectedItems: =Parent.Default

Font: =Font.Arial

Height: =66

InputTextPlaceholder: ="Select Facility Requirements"

IsSearchable: =false

ItemDisplayText: =ThisItem.Value

Items: =Choices([@'Equipment-Requisition'].FacilityReq)

RadiusBottomLeft: =10

RadiusBottomRight: =10

RadiusTopLeft: =10

RadiusTopRight: =10

Size: =16

Width: =532

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BCBuizer 22,798 Super User 2026 Season 1 on at

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Hi @BG-15041758-0,

Thanks for sharing the code. The reason my previous reply didn't work is because you're working with Choices.

To make this work, please try the below formula for the DefaultSelectedItems property:

ForAll( Split( Parent.Default, ", " ) As _Selected, First( Choices( [@'Equipment-Requisition'].FacilityReq), _Selected.Value ) ) )

This first splits the string into the individual values and then retrieves the correspoding optings from the optionset.

Having said that, it seems like the related column is a text type, but since you are working with an optionset, it seems it would be easier to change the type to Choices (plural, to allow for multiple selected options).

If this reply helped you in any way, please give it a Like 💜 and in case it resolved your issue, please mark it as the Verified Answer ✅.

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Ram Prakash Duraisamy 5,862 Super User 2026 Season 1 on at

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Hi,

Set DefaultSelectedItems as Parent.Default the for Visiblitiy "Air" in ComboBox1.SelectedItems.Value.

Please mark as answer if my suggestion helps.
Subscribe here for More Useful videos : https://www.youtube.com/@rampprakash3991

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BG-15041758-0 48 on at

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@BCBuizer

That didn't work either, I'm getting error messages

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BG-15041758-0 48 on at

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I already have this, but that isn't the issue.

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BCBuizer 22,798 Super User 2026 Season 1 on at

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Hi @BG-15041758-0,

The formula I shared does return a table, so I'm not sure why you get this error. By any chance, did you have to make modification to it? If yes, which?

I tested a similar formula before posting my respinse, so I'm certain the syntax are correct.

If this reply helped you in any way, please give it a Like 💜 and in case it resolved your issue, please mark it as the Verified Answer ✅.

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