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Frequent Visitor

Horizontal gallery's navigation buttons don't work unless you scroll to the second item



I'm having this issue with the horizontal gallery control wherein the navigation buttons don't work unless I move to the second item first using the scrollbar. Once the second item is selected, then the buttons start working.


Has anyone else encountered this?  Is there a fix for it?



Helper I
Helper I



Just came to say I'm having the same problem with my horizontal gallery. Been searching for a solution for a few hours now. 


The only thing I can say for certain is that I have a label in gallery called Gallery2.VisibleIndex. 


When my navigation works fine, the gallery starts with the visible index at 1. When my navigation does not work the visible index starts at 0. 

If I change the navigation step to 2 it does work. 

The gallery navigation works on the first load, then if you go to another page and come back (I had a problem of the gallery not scrolling back to the top, so I cleared the collection and recollected) it does not work when that happens. 

I read another post where someone mentioned setting the visible index to a variable and then setting the gallery default to said variable, but I couldn't quite understand what to do in this situation. 


Edit: I have also tried to Reset(Gallery) on the visible page. This gallery is coming from a collection. 

I have also tried Collect() on the Home Page button and on the on visual screen of the gallery page. 

Thanks @jbaggett, setting the navigation step seemed to work for me!  When I set it back to 1, it works in the PowerApps Studio, but not after I publish the app.  The other horizontal gallery within the app doesn't have any issues, which is odd.

Frequent Visitor

Whole day i was not able to fix this button, solution is so simple that i should not mention how much time i spend to get it.

If in play mode your horizontal gallery  navigation button dosnt work. ( showScroll = false , showNavigation = true ) 

For a quick fix, change your gallery like below.

NavigationStep = If(yourGalleryName.VisibleIndex = 0, 2, 1)


Frequent Visitor

The issue is that gallery cant handle to jump from index 0 to 2 with navigation step = 1. if you look at galleryVisible index in edit mode, it starts from 1, in play mode from 0... in my opinion it shouldn't be like that.

Thanks @Adam1986 for the formula.  Just in case you didn't know, PowerApps released the Self reference.  So you can reference the gallery without looking for the name:


NavigationStep = If(Self.VisibleIndex = 0, 2, 1)


Went half way through my app before I found out that it was released.  Been saving us a lot of time

I just ran into the same issue. I have a horizontal gallery with three items containing text and images. The size is such that only one item is visible on screen at a time. I have "scrollbar" disabled and "show navigation" enabled. When the app runs, the first gallery item loads fine; I click the right nav arrow and the 2nd gallery item loads; but clicking the nav arrow does NOT load the third and final item.  If I enable the horizontal scrollbar instead, I can scroll to the third item.


I converted the Gallery to a vertical Gallery, and it works just fine. Definitely a bug with the horizontal gallery.

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