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Countrows for gallery

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Posted on by 62
Hi everyone!
 
help/tell me how to use Countrows correctly in my case.

I have a SharePoint list with the following structure:
Month - choise field, no multi select
TypeEvent - choise field, allow multi select
Chain - choise field, no multi select
 
Task: at the output I want to get the count of TypeEvent by Chain. Something like that
 
Chain   TypeEvent1 TypeEvent2 TypeEvent3 TypeEvent4
Chain1 5 3 5 7
Chain2 7 2 4 4
Chain3 2 1 2 3
Chain4 4 4 3 5

I tried the first option:
CountRows(
        Filter(
            R3_APPinChains, Chain.Value = ThisRecord.Chain.Value && Value in ThisRecord.TypeEvent.Value
                )
            )
and realized that it was wrong. Because the output was the following:
Chain   TypeEvent1 TypeEvent2 TypeEvent3 TypeEvent4
Chain1 12 14 5 9
Chain2 12 14 5 9
Chain3 12 14 5 9
Chain4 12 14 5 9
 
although the numbers caught my attention. 
Because before that I counted the total number of events by TypeEventype. And they were like that
TypeEvent1 TypeEvent2 TypeEvent3 TypeEvent4
12 14 5 9
 
Here I used the following approach that WarrenBelz suggested to me earlier when solving other questions
RenameColumns(
    AddColumns(
        GroupBy(
            Ungroup(
                R3_APPinChains,
                TypeEvent
            ),
            Value,
            Grouped
        ),
        EventCount,
        CountRows(Grouped)
    ),
    Value,
    TypeEvent
)
I have tried in every way to apply this approach to my problem, but unfortunately everything is in vain.
That is why I am asking for help here.
I would be grateful for any help.
Thanks in advance!
Categories:
  • Kalakosha Profile Picture
    Kalakosha 62 on at
    Countrows for gallery
    Hi @WarrenBelz,
    yes, everything works fine from the first answer.
    strangely, I have already clicked on "Does this answer your question?" at least twice, but for some reason it did not close the item.
    thanks again so much!
  • WarrenBelz Profile Picture
    WarrenBelz 145,434 on at
    Countrows for gallery
    A quick follow-up to see if you received the answer you were looking for or if you need further assistance.

    Please click Does this answer your question if my post helped you solve your issue. This will help others find it more readily. It also closes the item. If the content was useful in other ways, please consider giving it a Like.
    MVP (Business Applications)    Visit my blog Practical Power Apps    LinkedIn    Buy me a coffee
  • WarrenBelz Profile Picture
    WarrenBelz 145,434 on at
    Countrows for gallery
    No - you cannot declare any column name dynamically, for many reasons including for Ungroup, Power Apps needs to validate that the column exists and is a Table field and for AddColumns, it must be a valid name and not already exist  - so it does not know what to expect if the value is dynamic.
     
    Please click Does this answer your question if my post helped you solve your issue. This will help others find it more readily. It also closes the item. If the content was useful in other ways, please consider giving it a Like.
    MVP (Business Applications)    Visit my blog Practical Power Apps    LinkedIn    Buy me a coffee
  • Kalakosha Profile Picture
    Kalakosha 62 on at
    Countrows for gallery
    Hi, @WarrenBelz,
    wow.. this is just great!
    thanks for your help!
    I got your idea, this will be a good example for future projects.
    please tell me, is it possible to substitute the TypeEvent value dynamically, and not specify it explicitly?
    I mean here:
    Filter(
                Grouped,
                Value = "Type1"
             )

    for example, if create a collection for TypeEvent
    ClearCollect(colTypeEvents,Distinct(Ungroup(R3_APPinChains,TypeEvent),Value))
    and then somehow filter by each value from this collection.
    Or is it delusional?
  • Verified answer
    WarrenBelz Profile Picture
    WarrenBelz 145,434 on at
    Countrows for gallery
    I assume that the Month column is not involved here. You will also need to add the actual value of the TypeEvent
    DropColumns(
       AddColumns(
          GroupBy(
      Ungroup( AddColumns( R3_APPinChains, Chains, Chain.Value ),
      TypeEvent
    ​​​​​​​ ), Chains, Grouped ), TypeEvent1, CountRows( Filter( Grouped, Value = "Type1" ) ), TypeEvent2, CountRows( Filter( Grouped, Value = "Type2" ) ), TypeEvent3, CountRows( Filter( Grouped, Value = "Type3" ) ), TypeEvent4, CountRows( Filter( Grouped, Value = "Type4" ) ) ), Grouped )
     
    Please click Does this answer your question if my post helped you solve your issue. This will help others find it more readily. It also closes the item. If the content was useful in other ways, please consider giving it a Like.
    MVP (Business Applications)    Visit my blog Practical Power Apps    LinkedIn    Buy me a coffee

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