Hello,
In the screenshot below I have a gallery with a cat:
The second screenshot in my gallery is of a dog:
In the screenshot below, I've created a button called "Bouton" on the right of my screenshot.
This button is outside my Gallery, so if I put the following formula in "onselect" :select(parent), this formula only works inside my Gallery.
What I'd like is to simulate a mouse click on the Cat's image via this button without using my mouse. Even better, if possible, I'd still like this button to take me directly to the Dog's image and select this image without having to use the Mouse.
I've tried these formulas so far without success:
galListData.Selected (galListData is the name of my gallery, Image8 is the name of my image object)
galListData.Selected.image8
In my image8 object in "onselect
I tried: Set(selectgal;galListData.Selected)
then on my button in "onselect" I set selectgal
Please note that i am a novice. If possible try to explain step by step.
Thank you
here is the screenshot with the button named "Bouton"
Solved! Go to Solution.
Interesting, that should have worked. Try adding a Reset(dalListData); in the button OnSelect, after the UpdateContext calls.
Change the image property to:
First(SelectedItem.'{Attachments}').DisplayName
Maybe I'm missing something, I'll connect later to test it on my sample app
Hi @Sormick
You need to set the Default property of the gallery to do that. Since you only see one record at a time do this.
Default Propertly
LookUp(Mytable or Collection, Field = X)
and it will change to that record.
If I have helped you, I would really appreciate if you please Mark my answer as Resolved/Answered, and give it a thumbs up, so it can help others
Cheers
Thank You
Michael Gernaey MCT | MCSE | MCP | Self-Contractor| Ex-Microsoft
https://gernaeysoftware.com
LinkedIn: https://www.linkedin.com/in/michaelgernaey
Hi @Sormick ,
To allow iterating through a collection of images you need to have them indexed.
I'd add a App formula for that, so if for example your gallery items used to be set to:
Filter('Shared Documents',EndsWith('Folder path', "Simpsons/")
Create a formula called OrderedCollection:
OrderedCollection = With({Simpsons:Filter('Shared Documents',EndsWith('Folder path', "Simpsons/"))},
Ungroup(
ForAll(Sequence(CountRows(Simpsons)),
{
MyRecord: Table(Index(Simpsons, Value)),
RowID: Value
}),
"MyRecord"));
Now that you have a RowID property for each row Set the Gallery Items property to OrderedCollection, and for the Image OnSelect property set:
UpdateContext({SelectedIndex: If(SelectedIndex = CountRows(OrderedCollection), 1, SelectedIndex + 1)});
UpdateContext({SelectedItem: LookUp(OrderedCollection, RowID = If(SelectedItem.RowID = CountRows(OrderedCollection), 1, SelectedItem.RowID + 1))});
Set the Default property of the gallery to SelectedItem.
Now upon clicking the image, the focused item will move to the following item until it reaches the last item and returns to the 1st one.
Hope this helps
Thanks for your reply.
I'm sorry, i am still a novice about formulas. Please could you explain where i can put the formulas above?
My gallery name is: GaLlistdata, image object name: image8
My images are stored on a sharepoint list as attachment.
I retrive the filename with:
First(galListData.Selected.'Pièces jointes').DisplayName
'Pièces jointes' means in french : attachments
My files are sorted with:
Sort(ListData;ID;SortOrder.Ascending)
Try following the steps:
1. On the left pane select App and find the Formulas property, then paste the following:
OrderedCollection = With({SortedData:Sort(ListData,ID,SortOrder.Ascending)},
Ungroup(
ForAll(Sequence(CountRows(SortedData)),
{
MyRecord: Table(Index(SortedData, Value)),
RowID: Value
}),
"MyRecord"));
* Note - replace comma with a semicolon
2. Set the Items property of your gallery to OrderedCollection
3. Set the Default property of your gallery to SelectedItem
4. For the Image in your gallery set the OnSelect property to:
UpdateContext({SelectedIndex: If(SelectedIndex = CountRows(OrderedCollection), 1, SelectedIndex + 1)}); UpdateContext({SelectedItem: LookUp(OrderedCollection, RowID = If(SelectedItem.RowID = CountRows(OrderedCollection), 1, SelectedItem.RowID + 1))});
Hope this helps
Thank you it seems now that my gallery is always selected with these formulas.It seems my gallery is always selected. however what i need to do it is to select automatically the "next" image when i click on a button outside my gallery not the gallery. sorry if I misunderstood from the start
Hi @Sormick,
no worries, in that case simply set your external button OnSelect to:
UpdateContext({SelectedIndex: If(SelectedIndex = CountRows(OrderedCollection), 1, SelectedIndex + 1)});
UpdateContext({SelectedItem: LookUp(OrderedCollection, RowID = If(SelectedItem.RowID = CountRows(OrderedCollection), 1, SelectedItem.RowID + 1))});
And that should perform the same action.
Hope this promotes you
Sorry, did not select the next ID image of my gallery. don't know why. My second image (the Dog) is not selected.
On my screenshot below
i have this formula which detects the name of the selected image:
First(galListData.Selected.'{Attachments}').DisplayName
which is currently "CAT"
I need to select the next image "Dog" via my external button "Bouton" without selecting manually the image DOG on my gallery.
Please share your galListData "Items" and "Default" properties
Please find the screenshots of my Gallistdata items and Default properties
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