Lookup and compare in Sharepoint Library

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Posted on by RaduR

Hello,

Can somebody help if is it possible to lookup and compare a value in a Sharepoint Document Library, not list.

I have in Powerapp a field where I introduce a value and I want to make it compare that value with values in column in order to notify in case it does exist.

I tried this, but I get an error.

If(
!IsBlank(
LookUp('Documente in Vigoare', 'Cod Intern' = Value(Self.Text))
),
Notify("This reference already exists", NotificationType.Error)
)

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Building Power Apps

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VasileR 298 Super User 2024 Season 1 on at

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Hei @RaduR ,

Add the If to the OnChange property of the Text control, and the "Behaviour ..." error will go away.

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RaduR 64 on at

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I changed the idea by adding that value in a list so maybe it would be easier, in fact I got another error.

"
Concatenate(DepDoc.SelectedText.Value, " - ", TipDocum.SelectedText.Value, " - ", NrDoc.Text);
If(
!IsBlank(
LookUp('Codificare Interna', 'Title' = Value(Self.Text)).'Title')
,
Notify("This reference already exists", NotificationType.Error))"

It says "Incompatible types for comparison".

I don't know if i wrote something wrong or..

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VasileR 298 Super User 2024 Season 1 on at

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Where did you add that code, and on what property?

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RaduR 64 on at

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Is added on a Label. I need to concatenate 3 inputs into a label and verify if that label does exists in that ShrepointList.

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VasileR 298 Super User 2024 Season 1 on at

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The label does not support behavior functions in the Text field (like Notify).
Either move the code to a button, or on one of the select steps (OnSelect for DepDoc or TipDocum).

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RaduR 64 on at

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I switched to a button, but I get that error every time even if that value it does not exist.
I know "isBlank" is useless in this case, but I don't know how to reformulate the code for a button.
If(
!IsBlank(
LookUp('Codificare Interna', 'Title' = Value(ConcatenareCodDoc.Text))
),
Notify("This reference already exists", NotificationType.Error)
)

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VasileR 298 Super User 2024 Season 1 on at

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You can remove Value() from the Concatenare, because you want to compare Text with Text.
Is 'Title' a text column in your library?

What is the error now?

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RaduR 64 on at

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I tried without Value, but then the Label goes in Error.
Title is a column in List, I changed it now to "Codificare" as text column.
The button that check works kind of, but it always returns the error.

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VasileR 298 Super User 2024 Season 1 on at

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Can you paste a value from the 'Codificare' column, so I can see what it contains?
I assume the label ConcatenareCodDoc is "0 - PL - 4214", right?

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RaduR 64 on at

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Yes, that is the label.
In "Codificare" column I wrote exactly "0 - PL - 4214" so with the button I can check between column and label.
I also wrote 1 - PL - 4214 in the label, but it still shows the Error

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