Display details of a sub-gallery present in a grouped gallery

[Buyeur]

Hi there.
I am building an order tracking app.
Each order has a status, and each time the status changes, a new line is created, with the same order number, but with the new information recorded.
I created a gallery grouped by order number, in which I put a sub gallery.
In this sub-gallery, we find the recordings.

I would like to access a detail screen, by clicking on the arrow icon, but all my fields remain empty.

Do you have an idea to solve this problem.

Thanks in advance.

[Drrickryp · Accepted solution]

@Buyeur 

In your ">" icon: Select(Parent);UpdateContext({itm:ThisItem.OrderNumber}) 

In your form as the Item property: LookUp(Table,OrderNumber=itm)

[Buyeur]

Thanks a lot.

I used the ID to have a unique number, and it works perfectly.

Thanks again

">" icon: Select(Parent);;Set(itm;ThisItem.ID)

Text Entry: LookUp(Table ;ID=itm; Sought value)