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Search on lookup multiple selection column for gallery

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Posted on by MicaBassi

Hello!
I'm opening this post to see if someone could help me with the challenge I'm facing in PowerApps.
I have a Canvas app with a horizontal gallery, that's connected to a Sharepoint list. On the items property of that gallery, I have the following code:

Search(

Filter(
myDataSource,
Category.Value = ThisItem.CategoryOption
),

SEARCHBOX.Text,
"field_21", "field_22")

So far, this works and I can use the searchbox (text input control) to filter my gallery, based on searching what I write on the searchbox on field_21 and field_22.

I also need to search on field_23, but field_23 is a lookup column in sharepoint that allows multiple values. If I simply add "field_23", I get the following error: "The function Search has invalid arguments. Wrong column type. Expects text type". I assume this is because this multiple selection column returns an array.

Do you have any ideas on how I could achieve this, in order to search for text within the different values of field_23?

Let me know if you need more details.
Thank you in advance 🙂

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Ami K 15,687 Super User 2024 Season 1 on at

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@MicaBassi -

It is not clear why you have "ThisItem.CategoryOption" inside the Filter (is this a nested Gallery?), but nevertheless, you can use the AddColumns function to create a "virtual" text column of the LookUp value.

Search( AddColumns( Filter( myDataSource, Category.Value = ThisItem.CategoryOption ), "_text_lookUp", Concat( field_23, Value, ";" ) ), SEARCHBOX.Text, "field_21", "field_22", "_text_lookUp" )

However, it is worth noting that the AddColumns and Search functions are not delegable. You can mitigate this somewhat using the With function:

With( { _prefiltered_data: Filter( myDataSource, Category.Value = ThisItem.CategoryOption ) }, Search( AddColumns( _prefiltered_data, "_text_lookUp", Concat( field_23, Value, ";" ) ), SEARCHBOX.Text, "field_21", "field_22", "_text_lookUp" ) )

If you can be certain that filtering on the Category field will return less than 2000 rows, you can then run the non-delegable functions on that smaller subset of data.

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jpullins1 on at

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Hi Mica, you should be able to concatenate the field and use that text to search?

Search( AddColumns("Your Data Source", "Searchfield_23", Concat( ThisRecord.field_23, Name, ", " ) ), TextInputCanvas1.Value, "Searchfield_23" )

-----------------------------------------------------------------------------------------------

Let me know if my answer helped solving your issue.
If it did please accept as solution and give it a thumbs up so we can help others in the community.

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Ami K 15,687 Super User 2024 Season 1 on at

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@jpullins1 you're missing a data source in your formula....

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jpullins1 on at

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Thank you Amik, pretty sure your solution is exactly what I was saying yet much more eloquently.

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MicaBassi on at

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Hi @Amik thanks for the solution, this worked! It is indeed a nested gallery. If possible I would like to ask you another question. For this same gallery, I have a dropdown control to filter the inner gallery by a column that is also a lookup column that allows multiple selection. So, if on the dropdown I selected Option1, I want to filter the gallery items by those that have Option1 within the array/lookup column named Vertical. The issue is that if I simply do "Dropdown.Selected.Value in Vertical", I get delegation error and the gallery "breaks". Any insights for these type of cases?

Once again, thanks!!

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Ami K 15,687 Super User 2024 Season 1 on at

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@MicaBassi - sorry I would need more detail because I cannot visualise what you're trying to do.

I would suggest raising a new post with that question in the main forum.

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