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I need to filter a column in the list A, in her form. The filtered values must exist in the list B and I need do this in the form of powerapps. It's simple to do this in SharePoint 2013, but I cant do this in powerapps.

I'm trying do this:

Filter(Choices([@ListA].Diretoria);Value in Filter(ListB;ReferenceFilter.Empresa=DataCardValue3.SelectedItems).Title)

but I cant read the ListB.

List B

enter image description here

Ex: When I select the Empresa 1 in the field DataCardValue3 in the form of the list A, I need filter to show just values of Diretoria A and C.

Someone can help me?

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  • What's the relation between the List A and List B? – Murilo Santana Dec 21 '20 at 23:20
  • Can you explain a bit more about the configuration of the lists and also fields you use in the formula? Are these column names you use in the two lists - Diretoria, Empresa, ReferenceFilter? – Chelsea_MSFT Dec 22 '20 at 7:46
  • The list B have the column Empresa and the DataCardValue3have the same values, I need select 1 of all values in list B have the same Empresa record. – Diego Hillesheim Dec 22 '20 at 11:10
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Try the following formula:

DataCardValue3.Items = Filter(Choices([@ListA].Diretoria),Value in Filter(ListB,DataCardValue2.Selected.Value=Empresa).Title)

DataCardValue2 is the data card for the Choice column Empresa.

DataCardValue3 is the data card for the Lookup column Diretoria

enter image description here

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  • When I use [@ListA] I have a error, it seems that the name is not associated with the list, the only list that is found is the current list where I am modifying the form. – Diego Hillesheim Dec 22 '20 at 11:19
  • I have successful to add the data source of list B, but the filter not working :( – Diego Hillesheim Dec 22 '20 at 13:03
  • Filter(Choices([@Divisao].Diretoria);Value in Filter(Diretoria;DataCardValue9.Selected.Value=Empresa.Value).Title) the code run, bu the itens not filtered, all is showed – Diego Hillesheim Dec 22 '20 at 13:29
  • I have sucesseful doing this Filter(Choices([@Divisao].Diretoria);Id in Filter(Diretoria;Empresa.Id=DataCardValue9.Selected.Id).ID) – Diego Hillesheim Dec 22 '20 at 14:08
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    @DiegoHillesheim Glad to know you solved your problem. You can mark your own Answer so that it will help others in this forum as well. Thanks. – Chelsea_MSFT Dec 23 '20 at 1:28
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i have successfull doing this:

1 - Add list b as datasource 2 - Do the filteer by ID

Filter(Choices([@Divisao].Diretoria);Id in Filter(Diretoria;Empresa.Id=DataCardValue9.Selected.Id).ID) (in pt-br we use ';' and not ',')

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