SharePoint LookUp Returns Wrong Data

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Posted on by Michael E. Gernaey

53,968 Moderator

Hello

I am posting this as an FYI as I can 100% repro it so I opened a ticket.

Scenario:

I have an SP List with 2 rows only.
The list has 3 columns.
Column A Text: Value is a GUID
Column B Text: Value is a GUID
Column C Text: Value is a string

I set a variable as such in a App OnStart or a Button doesn’t matter

Set(ColumnAGUID, “Row2Value”)

I have a component that as an Event, that returns the GUID Value for Row2 ColumnB

I set another variable in the Event Property on the App side

Set(ColumnBGUID, Text(ReturnedRow2Value);

In the same Event or in a button, I do the following

Notify(LookUp(‘Sp list’, ColumnA = Row2Value And ColumnB = ReturnRow2Value).ColumnC)

and each time it returns Row 1 value instead of Row 2

I have the Variables written into separate labels.

the values are correct. If I copy the values and hardcore the LookUp it gives the right value in the Notify.

Even more. If in the Event or Button, if I copy the Notify and in place of the variables, I use the Label1.Text and Label2.Text in the copied LookUp, which simply holds the value of the Variables, it now works and shows the right ColumnC value.

So, variable 1 = GUIDA and Label1.Text = GUIDA also.

Variable 2 = GUIDB and Label2.Text = GUIDB also

but using the Variables directly in the lookup gives the wrong value, but replacing them with their Label.Text counterpart works…

I can even use the same lookup in a button, post Event, and if I use the variables it’s wrong. Then use the labels and it works

Craziest thing I’ve seen in a long while.

Categories:

Building Power Apps

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TheRobRush 11,128 Moderator on at

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Not sure what you are doing wrong exactly but I have set up a couple tests to try this and am getting expected results. Maybe on a separate page for testing try setting the following up.

First I have a button to generate a bunch of random items in a test list for me,

Patch(VenueList, {Title: "random"&Left(Last(Split(Rand(),".")).Value, 5), testGuid:GUID(), testGuid2: GUID()})

this was so i could quickly generate 30 or so records and make sure it was working with any number of items in the list

I then made a gallery with

VenueList

as its items property (my test sp list)

I made 3 labels inside displaying title, testGuid & testGuid2 just so i could see everything at once. I also placed an icon inside with this OnSelect

Concurrent( Set(selectedItemgui1, ThisItem.testGuid), Set(selectedItemgui2, ThisItem.testGuid2)); Notify("The Selected Item is "&LookUp(VenueList, testGuid=selectedItemgui1 && testGuid2 = selectedItemgui2).Title)

Pressing it notified me of correct select items title via lookup.

Outside this gallery I placed another button and gave it the OnSelect of

Concurrent( Set(selectedItemgui1, Last(FirstN(VenueList, 2)).testGuid), Set(selectedItemgui2, Last(FirstN(VenueList, 2)).testGuid2)); Notify("The Selected Item is "&LookUp(VenueList, testGuid=selectedItemgui1 && testGuid2 = selectedItemgui2).Title)

(This will always return the second record in the list) It also provided expected results.

Lastly I placed another button and hard set it with

Concurrent( Set(selectedItemgui1, "dc327b3d-b9ca-4d07-9aed-99630de00095"), Set(selectedItemgui2, "0a012315-526a-46ff-a751-c929588d6747")); Notify("The Selected Item is "&LookUp(VenueList, testGuid=selectedItemgui1 && testGuid2 = selectedItemgui2).Title)

and this also returned the expected record number

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Michael E. Gernaey 53,968 Moderator on at

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Oh I agree. It’s just a scenario I ran into.

After cutting the component out. Pasting it back. No code changes. At all. It started working.

In the past I have seen and helped many ISVs with weird component issues but I’ve never had this one before.

seems good now.

Cheers

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