Showing results for 
Search instead for 
Did you mean: 
Continued Contributor
Continued Contributor

Update Gallery CheckBox

Thank you for taking the time to read my question.


I asked this one earlier and thought that I understood the answer but after a few days I'm still stumped.


What I have is a Gallery that has a checkbox and a label for each record.


Gallery.Items = Filter('[dbo].[MedicationActive]',MedicationFacility = SelectedFacility.Text Or MedicationFacility = "All", MedicationLine = SelectedLine.Text Or MedicationLine = "All").Medication


Gallery.TemplateFill = If(ThisItem.Medication in colPelMed.Med,LightBlue,Transparent)


Gallery.OnCheck = If(ThisItem.Medication = "NONE",RemoveIf(colPelMed,Facility=SelectedFacility.Text,Line=SelectedLine.Text,Med<>"NONE"),RemoveIf(colPelMed,Facility=SelectedFacility.Text,Line=SelectedLine.Text,Med="NONE"));//update the collection
Collect(colPelMed,{Facility:SelectedFacility.Text,Line:SelectedLine.Text,Med:ThisItem.Medication});//add the currently selected item to the collection


IMPORTANT: colPelMed holds more than one record. It holds records for other Facility/Line combinations so I can't ClearCollect this collection. I have an unknown number of Facility/Line combinations so I can't create a unique collection for every combination.


What I want to do is if "NONE" is selected, then I want to clear all the other check boxes. If any of the other checkboxes are selected, then "NONE" should be cleared. Also, if there is no record found in the colPelMed then "NONE" should be selected to start, otherwise check the correct checkboxes. The reason I need to do this is because the user can start a record but not complete it. They may need to switch to another Facility/Line, update that record a bit more, then come back. Therefore I need to set this gallery to where they left off. 


I have a second gallery I use to test with. It shows what's currently in colPelMed filtered for Facility and Line. When I use the RemoveIf() function I can see this gallery refresh correctly so I know that my OnCheck formula is ok. I have not written my OnUnCheck yet as I want to get the OnCheck to work first... baby steps.




Any help would be great. I've been working on this for days.



Super User III
Super User III


Oh no worries.  I hadn't actually looked.  I was just mentioning it.  We get "points" for when our posts are marked. 😁

So, when I work with someone on a scenario that is fairly common for people to ask about, I like to make sure to conclude with that statement - as I just want to make sure others can find it easily (so I don't have to answer it again 😂😂)

Digging it? - Click on the Thumbs Up below. Solved your problem? - Click on Accept as Solution below. Others seeking the same answers will be happy you did.
Check out my PowerApps Videos too! And, follow me on Twitter @RandyHayes

Helpful resources

PA User Group

Welcome to the User Group Public Preview

Check out new user group experience and if you are a leader please create your group


Demo Extravaganza is Back!

We are excited to announce that Demo Extravaganza for 2021 has started!

MBAS on Demand

Microsoft Business Applications Summit sessions

On-demand access to all the great content presented by the product teams and community members! #MSBizAppsSummit #CommunityRocks

Power Apps June 2021

June Power Apps Community Call

Don't miss the call this month on June 16th - 8a PDT

Top Solution Authors
Top Kudoed Authors
Users online (29,222)