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Distinct Filter Gallery

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Posted on by Phineas

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What am I doing wrong in the below formula.

I have a ComboBox and a Gallery.

Goal:
If the ComboBox is empty distinct filter the Collection by Title, where each member only appears once.

Else filter the Collection for all items associated with name chosen in ComboBox.

The second half - alone, works, but I can't get the initial distinct to work.

The 'Title' column contains the member's full name (Doyle, Popeye), called FullName in SP List view.

If(IsBlank(ComboBox1.Selected.Value),
SortByColumns(
Distinct(Collection, Title),
"Title",
SortOrder.Descending
),
Filter(Collection, Title = ComboBox1.Selected.Value))

Categories:

Building Power Apps

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charlessexton 19 Super User 2024 Season 1 on at

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Distinct() returns a one-column table, so if you're expecting a 'FullName' column that won't be there. It will only be returning 'Value'.

https://learn.microsoft.com/en-us/power-platform/power-fx/reference/function-distinct

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Phineas 5,331 Moderator on at

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I'm expecting the Title column content (the member's full name) - and all associated content on that item row in the SP List, to appear in the gallery once - the first instance of the member's name is sufficient.

This is possible as a distinct of sort function, yes?

Current View:
(Title/FullName)
Doyle, Popeye Sailor
Doyle, Popeye Sailor
Doyle, Popeye Sailor
Doyle, Popeye Sailor
Bunny, Bugs Carrot Thief
Bunny, Bugs Carrot Thief
Bunny, Bugs Carrot Thief
Wayne, Bruce Philanthropist
Wayne, Bruce Philanthropist

Goal:
Doyle, Popeye Sailor
Bunny, Bugs Carrot Thief
Wayne, Bruce Philanthropist

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charlessexton 19 Super User 2024 Season 1 on at

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You can use GroupBy() to achieve what you want. Please see attached.

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charlessexton 19 Super User 2024 Season 1 on at

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You can use GroupBy() to achieve what you want. Please see attached.

So you would just choose the columns you need. I put "Role" for the things like Sailor, Carrot Thief.

GroupBy(Collection, "Title", "Role", "Group")

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Phineas 5,331 Moderator on at

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Thank you.

Is there a limit on the number or type of columns you can group?

The GroupBy portion works for half the columns.

Once I try to add "Created" (SP system default date column), "Pay_Type" (single line to text), or "Pay_Hours" (Number), for example, the member's name then appears multiple times (though not all instances of the member's name appears.

Example: one member appears on the list 12 times with a regular filter of the collection.
Before entering any of the above columns, and with the first five columns loaded into the GroupBy formula the member's name only appears once - as desired.

Once I enter any of the above columns the member's names start to appear multiple times (four times in this example) , rather than just the once time desired.

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