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Power Platform Community / Forums / Power Apps / Collection with GroupB...
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Suggested Answer

Collection with GroupBy, AddColumn and LookUp Columns

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Posted on by JM-14081323-0 126
Hello
 
how can I use GroupBy with lookup columns in the table please?
 
I have a joint table OperaceVNKN with columns Operace and VNKN (Operace is lookup column where it takes column Nazev from table Operace, VNKN is lookup column Seznam in table VNKN)
 
Tried this:
 
ClearCollect(
groupOpe;
AddColumns(
GroupBy(
OperaceVNKN;
Operace;
VNKN
);
skupOperace;
CountIf(OperaceVNKN;true)
)
)
 
Can anyone see a problem? Thanks
Categories:
Building Power Apps
I have the same question (0)
  • Suggested answer
    Jon Unzueta Profile Picture
    Jon Unzueta 1,834 Super User 2026 Season 1 on at
     

    Thanks for sharing your formula and context! You're close, but there are a few things to clarify when using GroupBy with lookup columns in Power Apps.

     Problem Breakdown

    You're trying to group a collection (OperaceVNKN) by two lookup columns: Operace and VNKN. However, GroupBy in Power Apps works best with text or primitive values, not complex records like lookup fields (which are actually records with nested properties).

    Solution Approach

    To group by the display values of the lookup columns (e.g., Operace.Nazev and VNKN.Seznam), you need to extract those values first using AddColumns, then group by the new columns.

    Suggested Formula

    ClearCollect(

        groupOpe,

        AddColumns(

            GroupBy(

                AddColumns(

                    OperaceVNKN,

                    OperaceNazev, Operace.Nazev,

                    VNKNSeznam, VNKN.Seznam

                ),

                "OperaceNazev",

                "VNKNSeznam"

            ),

            "skupOperace",

            CountRows(ThisRecord[@AllItems])

        )

    )

    🏷️ Tag me if you have any further questions or if the issue persists.
    ✅ Click "Accept as Solution" if my post helped resolve your issue—it helps others facing similar problems.
    ❤️ Give it a Like if you found the approach useful in any way.

     

     
  • Suggested answer
    Jon Unzueta Profile Picture
    Jon Unzueta 1,834 Super User 2026 Season 1 on at
     

    Thanks for sharing your formula and context! You're close, but there are a few things to clarify when using GroupBy with lookup columns in Power Apps.

     Problem Breakdown

    You're trying to group a collection (OperaceVNKN) by two lookup columns: Operace and VNKN. However, GroupBy in Power Apps works best with text or primitive values, not complex records like lookup fields (which are actually records with nested properties).

    Solution Approach

    To group by the display values of the lookup columns (e.g., Operace.Nazev and VNKN.Seznam), you need to extract those values first using AddColumns, then group by the new columns.

    Suggested Formula

    ClearCollect(

        groupOpe,

        AddColumns(

            GroupBy(

                AddColumns(

                    OperaceVNKN,

                    OperaceNazev, Operace.Nazev,

                    VNKNSeznam, VNKN.Seznam

                ),

                "OperaceNazev",

                "VNKNSeznam"

            ),

            "skupOperace",

            CountRows(ThisRecord[@AllItems])

        )

    )

    🏷️ Tag me if you have any further questions or if the issue persists.
    ✅ Click "Accept as Solution" if my post helped resolve your issue—it helps others facing similar problems.
    ❤️ Give it a Like if you found the approach useful in any way.

     

     

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