How to change gallery item color based onChange on a combobox

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Posted on by AnthonyIsAdulti

Hi everyone,

I am trying to have it so if an individual item's combobox in a PowerApp gallery is changed, that specific items box is turned to green. Is there a way of achieving this?

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Building Power Apps

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Amol-Kavnekar 123 on at

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Hi AnthonyIsAdulti,

Yes, you can achieve this by using conditional formatting within the gallery to change the background color of a ComboBox when its value is changed. Here's how you can do it:

Screen OnVisible Property:

ClearCollect(ComboBoxChanges, AddColumns(Gallery1.AllItems, "Changed", false))

ComboBox OnChange Property:

Patch( ComboBoxChanges, LookUp(ComboBoxChanges, ID = ThisItem.ID), {Changed: true} )

ComboBox Fill Property:

If( LookUp(ComboBoxChanges, ID = ThisItem.ID).Changed, Color.Green, Color.White )

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AnthonyIsAdulti 39 on at

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Hi, what would the "Changed" be? I keep getting expected identifier name when I put it into my code.

Edit: I got it to work thanks!

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dmb 12 on at

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Do you want to track for dirty changes in a gallery where every record is exposed by editable fields?

If so, on the screen load store the collection of records, and use formula for the fill / border color properties, etc. of the gallery item. Formula would compare this record's field value with the one in the collection (filtered by its GUID) and return different colors for true/false outcome.
When you patch the records, reload the screen (navigate, etc.).

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