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How to force selection of a Gallery item in PowerApps

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Posted on by Community Power Pla... Microsoft Employee

I am using a Gallery as tab navigation and I have a simple scenario where I want to navigate to a specific tab when I click a button...all on the same screen.

My gallery collection is as follows:

ClearCollect(HomeActionCollection, Table({Name:"Create Request"},{Name:"Your Requests"});

I set a variable OnStart to identify which tab to select first:

Set(HomeActionSelected,"Create Request")

I set the Gallery default as follows:

Gallery.Default = LookUp(HomeActionCollection, Name=HomeActionSelected)

...shows the first item onStart...

I have a button click that does:

Set(HomeActionSelected,"Your Requests")

...The Gallery item is not selected.

How can I make this work?

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Building Power Apps

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Community Power Pla... Microsoft Employee on at

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I also tried to reset the collection on the button click like:

Set(HomeActionSelected,"Your Requests"); ClearCollect(HomeActionCollection, Table({Name:"Create Request"},{Name:"Your Requests"})

Amazingly it worked! BUT ONLY ONE TIME...If I clicked on another tab and then clicked the button again it did not change the gallery selection.

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Community Power Pla... Microsoft Employee on at

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This does work if you add a Clear call first before ClearCollect.

Set(HomeActionSelected,"Your Requests");
Clear(HomeActionCollection);
ClearCollect(HomeActionCollection, Table({Name:"Create Request"},{Name:"Your Requests"})

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MisterMagoo 81 on at

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unfortunately it is not working for me, even with a "Clear" before the ClearCollect!

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bfing 40 on at

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I realize this is a very old post, but I happened across it and i figured I would chime in.

The way I accomplish this is to define a context variable that gets updated by selecting a gallery item, and all other on-screen controls are updated based on the context variable instead of Gallery.Selected. This approach has the added benefit of being able to browse to the screen with the gallery and pass a predefined context variable through the Navigate function and "select" other gallery items from other on screen controls (such as a search feature, or separate button press, etc.)

I hope this helps you or someone else that happens across this question like I did.

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johnnykalsi 143 on at

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3 years later this problem still has no solution

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