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Power Platform Community / Forums / Power Automate / Merging Lists in PAD
Power Automate
Answered

Merging Lists in PAD

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Posted on by luckyra 18

I have 2 lists

 

 

List 1List 2
A 
 C
B 
 D

 

I want to merge these 2 to get List 3 which replaces the blanks and in the order A,C,B,D

You might say to use merge list, subtract list. Those don't seem to work.

Merge list gives me - A,,B,,,,C,,D

Subtract list and join gives me A,B and C,D when joined is A,B,C,D

So please let me know if this is a limitation or it is possible

Categories:
Power Automate Desktop
I have the same question (0)
  • UshaJyothiKasibhotla Profile Picture
    UshaJyothiKasibhotla 203 Moderator on at

    You can convert these lists into datatable and then you can use find and replace datatable activity 

    Then you can replace blank value with the value in the next column

    Hope this helps

    Usha

  • luckyra Profile Picture
    luckyra 18 on at

    @UshaJyothi20  where is the option to convert list to table?

  • Verified answer
    cwischnewski Profile Picture
    cwischnewski 142 on at

    You could do sort of a correlated loop through these lists.  Get the larger of the two .count values, then loop from 0 to that larger count value (minus 1, since the lists are 0 based, the last item is count - 1).  Inside the loop, first check if List1.count <= LoopIndex and if it is add it to your merged list.  Then do the same for List2.

     

    If List1.count >= List2.count

      MaxList = %List1.count - 1%

    Else

      MaxList = %List2.count - 1%

    End

    Create new list NewList

    Loop LoopIndex from 0 to MaxList with step 1

      If LoopIndex <= List1.count

        Add item List1[LoopIndex] to list NewList

      end

      if LoopIndex <= List2.count

        Add item List2[LoopIndex] to list NewList

      end

    end

  • luckyra Profile Picture
    luckyra 18 on at

    luckyra_0-1702570801633.png

     

    Something like this? This worked for me when using Is empty the <= argument gave A,,,C,,,B,,D

  • UshaJyothiKasibhotla Profile Picture
    UshaJyothiKasibhotla 203 Moderator on at

    I mean to write both lists in an excel and then read that excel then we get a data table 

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