"remember" selected gallery item

(0) Share

Report

Posted on by Frankie70

384

Hi all,

I have an app that shows M365 groups in one gallery (colour coded depending if you are owner or member) and when clicking on a group in a second gallery the group member are shown.

When I add or remove members I might happen that the colour coding in the first gallery might change, so I "refresh" this gallery.

Unfortunaltely the last selected item is not remembered.

I tried the following:

1) when selecting an item in the first gallery
OnSelect: Set(recent_group, ThisItem)

2) Default property of the gallery:

Default: recent_group

3) after refreshing the gallery:

Select(Gallery2_1,1, NextArrow3_1) (the "1" in the middle should be the selected item)

This does not work. Does anone has an idea what I can do to make this work?

Categories:

Building Power Apps

I have the same question (0)

All responses (8)

Answers (1)

Sort by

LaurensM 12,516 Moderator on at

Like (0)

Report
Copy link

Link copied!
Hi @Frankie70 the code with a variable should work, but step 3 is not needed.

(1) Gallery 1: OnSelect of the gallery should save the record to a variable
Set(recent_group, ThisItem)

(2) Gallery 1: The default property should be:
recent_group
(This record will automatically be selected after the resfresh/reset of the gallery)

(3) Gallery 2: this gallery should be dependent on Gallery 1 via Gallery1.Selected.
Due to the Default Property of Gal1, no Select() function is needed to 'select' the previous item.

An easy way to troubleshoot this issue is by changing the TemplateFill of Gallery 1 for the selected record:
If(ThisItem.ID = Gallery1.Selected.ID, Blue, White)
This will make debugging the issue easier.

If this solves your question, would you be so kind as to accept it as a solution.
Thanks!

Was this reply helpful? Yes No
Frankie70 384 on at

Like (0)

Report
Copy link

Link copied!

@LaurensM thanks for you answer.
Step 3 is done to select the last selected item to show the users in the 2nd gallery after the re-collect.
But unfortunately the first steps do not work.
I changed the TemplateFill to trouble shoot. But after re-collecting the items for the 1st gallery non of the items is highlighted. Any other idea?

Was this reply helpful? Yes No
LaurensM 12,516 Moderator on at

Like (0)

Report
Copy link

Link copied!
@Frankie70 with the Default property, step 3 will be done automatically. The Default record will be selected.

To troubleshoot the issue further, would it be possible to do 2 things:
Make sure the variable still has a value after the recollect of Gal1, normally this should be ok
Change the Default property of Gal1 to the following:
LookUp(CollectionName, ID = recent_group.ID)
Change ID to a field that is unique for each record of Gal1.

I hope this helps!

Was this reply helpful? Yes No
Frankie70 384 on at

Like (0)

Report
Copy link

Link copied!

@LaurensM here must be the error somewhere.
It gives me the following error message:

Was this reply helpful? Yes No
LaurensM 12,516 Moderator on at

Like (0)

Report
Copy link

Link copied!

Hi @Frankie70 when you hover over the red line, what is the error that pops up?

Is col_merged the Items property of that Gallery & the source of the recent_group record?

Was this reply helpful? Yes No
Frankie70 384 on at

Like (0)

Report
Copy link

Link copied!

Hi @LaurensM
error message: "Invalid formula. Expected a value compatible with 'items'
Items property of Gallery: GroupBy(col_merged, "Title", "Hubdata", "GroupId","_records")
I use this because there are duplicated items in the gallery.

Was this reply helpful? Yes No
Verified answer

LaurensM 12,516 Moderator on at

Like (0)

Report
Copy link

Link copied!
Hi @Frankie70 thanks for the additional info.
In that case please adjust the Default to the following:

LookUp(GroupBy(col_merged, "Title", "Hubdata", "GroupId","_records"), GroupId = recent_group.GroupId)

Was this reply helpful? Yes No
Frankie70 384 on at

Like (0)

Report
Copy link

Link copied!

@LaurensM fantastic!
This working now! Thank you so much!!

Was this reply helpful? Yes No