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Populating a gallery with a filtered sharepoint document library using flow

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Posted on by ddf 37

I need to populate a gallery with a collection of file properties filtered by a sharepoint document list using Flow.

I designed this sequence of flow steps:

  • Power apps button trigger
  • "Initialize variable", with the text inserted in a textbox
  • "Get SP files (only properties)"
  • "Array filter" to select only files that contain the search variable in the filename
  • "Respond to Powerapps"

Cattura.JPG

detail:

 

Cattura.JPG

 

I don't be able to export the filtered data to my collection (and fill my gallery items).

I tried to use "Respond to Powerapps" but I don't see the variable to link to "result".

 

Cattura.JPG

I found this problem with array variables and not with the string ones.

Please help me. Thank you in advance.

Daniele

 

 

Categories:
Using flows
I have the same question (0)
  • Verified answer
    JohnAageAnderse Profile Picture
    JohnAageAnderse 1,986 on at

    Hello @ddf 

    To transfer the result from the Filter Array action back to the PowerApps, you have to convert it into a format that can be sent back.

    Then your PowerApps has to parse the data into a useful format 🙂

    Kind regards, John

  • ddf Profile Picture
    ddf 37 on at
    Thank you John.
    I made an upgrade to this post adding the join function but I still have a problem to obtain a result.
    Please look this new post if you can help me.
    Thanks again
    Daniele
    https://powerusers.microsoft.com/t5/Building-Power-Apps/Get-file-property-from-a-share-point-document-list-using-flow/m-p/530027
  • JohnAageAnderse Profile Picture
    JohnAageAnderse 1,986 on at

    Hello @ddf 

    The possible response formats does not allow you to pass back an array, so you have to JSON.stringify it first, then pass that back in the text response field.

    In my flow I have received an array of items, which I then stringify (like with JSON) and pass the result into the response field "result".

    ResponseToPowerAppsJSONStringify.png

    In you PowerApps, when I invoke the flow, I set a variable to hold the response.

    PowerAppsSetResultInVariable.png

    The variable is then used to fill my label with the result, which of course is still a stringified JSON.

     

    ResultInLabelTextFromVariable.png

     

    You now have the result, just need to convert it into something that PowerApps can work with (JSON.parse) 🙂

    Kind regards, John

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