Power Apps

Toggle OnCheck property is undesireable triggered by refresh() function

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Posted on by Calcioscacchi

413

Hi there.

I have a toggle inside a gallery, used to change a "Y/N" field in a sharepoint list.

These toggles are used to describe a dispender configuration: Production linea could have more dispenser, and each dispender could have only 1 legal origin.

Inside the "Oncheck" property of my toggle i set this code:

If(
    !IsBlank(LookUp('Tracelot - Origini dosatori'; ID = ThisItem.ID && Attivo = true));
    false; // Se l'elemento è già attivo, non fare nulla
    Set(
        varProcessing;
        true
    );;
    Set(
        varCurrentItemID;
        ThisItem.ID
    );;
    // Disattiva tutte le altre origini per questa Linea e Dosatore
    ForAll(
        Filter(
            'Tracelot - Origini dosatori';
            Linea = Radio1.Selected.Value &&
            Dosatore = Title1.Text &&
            ID <> varCurrentItemID
        );
        Patch(
            'Tracelot - Origini dosatori';
            ThisRecord;
            {Attivo: false}
        )
    );;
    // Attiva l'origine corrente
    Patch(
        'Tracelot - Origini dosatori';
        LookUp('Tracelot - Origini dosatori'; ID = varCurrentItemID);
        {Attivo: true}
    );;
    Set(
        varProcessing;
        false
    );;
    true // Mantiene il toggle attivo
)

The code is working, the only problem is that when I start the app or I refresh the data (not in this code), the "Oncheck" property seems to be triggered and this cause some errors.

What can I do to trigger the "OnCheck" property only when I manually change the toggle status?

Thanks.

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Calcioscacchi 413 on at

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Hi @FLMike,

This solution seems to have troubles:

I edit your idea adding a control:

If( !triggerOnChecked; Notify("test onchecked failed"); UpdateContext({triggerOnChecked: false});; If(... .........
And the first time I click on the toggle it return the error, this means that it is in "false" value when OnCheck is triggered.
The question is: OnSelect and OnCheck: which one has the priority?

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Michael E. Gernaey 53,690 Super User 2025 Season 2 on at

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HI

I am actually going to try to repro this, I totally believe you, its just.. not something I have seen before.

But lets think about it like this.

1) Where and when are "refreshes" caused, to make sure we cover them all.

Steps to try.

1. In the OnVisible Property of the screen you can do the following code, which will help us stop it from DOING anything even though triggered when you don't want it to be

UpdateContext({ triggerOnChecked: false });

2. In the OnSelect of the Toggle

UpdateContext({ triggerOnChecked: true});

3. Then in your OnChecked for that control wrap the code in if, so when its set to false, it will NOT trigger

If(triggerOnChecked, UpdateContext({ triggerOnChecked: false }); // so that it doesn't trigger again right away // do stuff here );

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