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RomanScheinher
Regular Visitor

Change gallery selected item

Hello,
I need help how to change the actually selected item in Gallery.

I have a screen with basic gallery filled with data from a collection. And the second screen with detail referencing Gallery.Selected item. On the gallery screen I need to have a button to go to the detail of one specific item (based on logical value in column of source collection, only one item has it "true" at any time).
I think this is right way how to achieve that:

ForAll(Gallery1.AllItems, If(Started, Select(Gallery1, 1, [@NextArrow])))
but based on documentation of "Select" function:
- I don't have the row number (above is hardcoded #1) and I don't want to add another column.
- I don't know how to reference the specific row whithin the ForAll, where the condition is true, to fire Select(NextArrow_OfTheRightRow).

I still hope there is any simple solution, easier than adding column with row number or holding the selected item record in separate variable.

 

Thank you in advance for any help

5 REPLIES 5
JR-BejeweledOne
Super User
Super User

Are you wanting this to happen automatically or are you wanting it to happen when someone selects the item?



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In OnSelect of the button I navigate user to detail screen of the gallery's Selected item. So, before navigate, I need to change the record which is the gallery's Selected referencing to.

I have to admit I don't quite understand that logic.   Is it because once they have navigated to the detail screen you don't want them to see that item in the gallery anymore?

 

What are they doing on the detail screen?   If they are updating the item in some way, can you use that update to filter the gallery so it no longer shows the item in question?



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There is nothing to do on the detail screen. It is standard list -> detail behavior. List is the gallery component, when you click on any item you are redirected to detail screen of this item. But in addition to this, under the gallery is one more button and when user clicks on it, I want to show detail of one specific item based on some conditions.

On the detail screen there are some labels showing text like Gallery1.Selected.Title and this is why I need to change the "Selected" to show detail of the correct item after user click the button under list / gallery.

 

Sorry for my explanation, I am doing my best 🙂 Maybe I am trying to achieve something impossible or doing it in wrong way.

You would have to update your form (detail item) 'Item' property with an if statement, that would display either the gallery.selected item or the item that was selected by the other button.

 

Since I don't know what your OnSelect formula is for the button, I can't give you a better example.



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