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Power Platform Community / Forums / Power Apps - Building Power Apps / Nested For All Loops
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Nested For All Loops

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Posted on by LauraGrimes123 58
Hi 
 
I have a canvas app in which I am trying to eliminate the duplication of participants in a session:
 
 
I have a collection of the existing participants and then I want to loop through this and within this loop, loop through the selected items of a combo box and see if the values are the same, and if they are don't add them 
 
I can't figure out how to reference the first collection within the second part of the loop:
 
ForAll(colParticipants,ForAll(GroupWorkAddYP.SelectedItems,If(ThisRecord.YPID=colParticipants.Value)))
 
 
Any advice is appreciated
 
 
 
Categories:
Using Apps Using Formulas
  • Verified answer
    WarrenBelz Profile Picture
    WarrenBelz 146,524 Most Valuable Professional on at
    Nested For All Loops
    This will get the selected items in the drop-down that are not in the collection.  
    Filter(
   GroupWorkAddYP.SelectedItems,
   !(YPID in colParticipants.Value)
)
    Are you wanting to then add them to the collection ? 
    ForAll(
   Filter(
      GroupWorkAddYP.SelectedItems,
      !(YPID in colParticipants.Value)
   ),
   Patch(
      colParticipants,
      {Value: YPID}
   )
)
     
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