Show the type of the columns of a collection

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Posted on by web265p3

Lets say I have a collection in PowerApps.

I can show this if I click on the (x) icon on the left side.

For example like this:

You can see that I have a collection called "xxx" with the columns "Dauer", "Einsatzdatum", "Id"...

But how can I know the type of those columns?

For example the Id-Field could be a number or Text. I can just see that it has the value 1018, but not the type.

However, this is sometimes very useful.

Is there any trick I am missing?

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Building Power Apps

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Rajkumar_M 3,741 Super User 2025 Season 2 on at

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Hi @web265p3

In PowerApps, it's not directly possible to determine the data type of columns within a collection just by looking at the data displayed in the collection viewer.

You can inspect individual values within a collection using formulas like IsBlank, IsNumeric, IsText, etc., to infer the type of data. For example:

// Check if the first value in 'Id' column of 'MyCollection' is numeric
If(IsNumeric(MyCollection[Id]), "Numeric", "Text")

Thanks!

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web265p3 10 on at

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Maybe to mention, that an @-is missing:
If(IsNumeric(MyCollection[@Id]), "Numeric", "Text")

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web265p3 10 on at

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For me this does not work.
If I create a new collection like this:

Collect(AA, {A: 3, B: "Text", C: Today()})

And then I try to evaluate it like this:

If(IsNumeric(AA[@A]), "Numeric", "Text")

It ALWAYS evaluates to "Text", no matter if I write @A, @B or @C

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