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Power Platform Community / Forums / Power Apps / Counting rows using Gr...
Power Apps
Answered

Counting rows using GroupBy - but returns blank field

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Posted on by SonnichJensen 40
I am trying to read the count of pallets for each trip.
The follow code should work, but does not.
The result are as many rows as there are trip_id's, but the count_p is blank.
The ID in the table auto-increment.
 
This is what I think should work, but it does not.
 
Any ideas how to do this?
 
trip_pallet_count = DropColumns(
    AddColumns(
        GroupBy(
            pallets,
            trip_id_display,
            id
        ),
        count_p,
        CountRows(id)
    ),
    id
);
Categories:
Power Apps Pro Dev & ISV
I have the same question (0)
  • Verified answer
    SaiRT14 Profile Picture
    SaiRT14 1,990 Super User 2025 Season 1 on at
    Here is the update code:
    trip_pallet_count = DropColumns(
        AddColumns(
            GroupBy(
                pallets,
                "trip_id_display", // Group by this field
                "grouped_data"     // Name for the grouped data table
            ),
            "count_p",           // New column for the count of pallets
            CountRows(grouped_data) // Count rows in the grouped data table
        ),
        "grouped_data"         // Remove the grouped data column if not needed
    );
     
     
    your code had following issues:
    The GroupBy function doesn't automatically create a collection of rows in a usable format for the CountRows function.
    The CountRows function is attempting to count rows in the id field, which is not the correct way to reference a grouped collection.

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