cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
aboehm
Advocate I
Advocate I

Named Formulas Issue: Update cached value when dependent variables change

When I run my app in the Power Apps preview player, the cached values from named formulas aren't updated when a variable changes on which the formula depends.

I have the following Named Formula in App.Formulas:

CurrentItem = If(
    Not(IsBlank(IdVar)) || IsBlank(SharePointIntegration.Selected) || IsEmpty(SharePointIntegration.Selected);
    Coalesce(
        LookUp(
            [@SPList];
            ID = Coalesce(
                IdVar;
                SharePointIntegration.SelectedListItemID
            )
        );
        Defaults([@SPList])
    );
    SharePointIntegration.Selected
);;

 I have a TextInput control with the following formula in .OnChange:

Set(
    IdVar;
    If(
        Not(IsBlank(Self.Text));
        Int(Self.Text);
        Blank()
    )
);;

Then I have a form where the Item property is set to CurrentItem and the DataSource to [@SPList].

 

When you change the text in the TextInput control the form will not be updated to display any item from the data source.

When I run this app as a form from the corresponding SharePoint list then the correct selected item will be shown. So, at least the Named Formula will run once on startup or when it is used the first time.

 

This problem started last week with the Power Apps version 3.23023.

 

I tried some investigation on my own and found out that the dynamic JavaScript which is created for the _onEntityDataChanged event handler (which is called when a global variable is changed by the Set-function) calls runDependentRules, but it does not include the internal name of Named Formula in the argument list, only all the other "normal" references to the IdVar variable.

 

I hope this gives a good hint to speed up the release of a fix for this issue.

34 REPLIES 34

@ChrisAtMYB , I see but that's still you can do with Named Formulas.

 

For example,

intNumber = TextInputBox1.Text;
GetData = Filter('My Sharepoint List', NumberColumn > intNumber);

 

ChrisAtMYB
Frequent Visitor

@ShantanuP true - in my case I use it across multiple pages though, and though I prefer it as a variable 😉

sum182blink41
Frequent Visitor

still having a similar issue where the named formulas are not re-evaluating whatsoever unless I actually remove the reference to it in the control's text and add it back in! The behavior I've encountered is that the named formulas are just behaving like variables except a variable will at least change its value if I set it to something different, really hoping my experience isn't the extent of the intended functionality of Named Formulas!

Hello @sum182blink41, could you please share a sample app with a repro?

MiLoCore
Advocate II
Advocate II

Hi 🙂
I currently have a similar issue as well.
I put a filtered Dataverse table inside a named formula variable.
If I now update a row to that dataverse table via patch function, the named formula does not refresh.
Even if I place a Refresh(Datasource) after the patch function, the Datasource inside named formula will not refresh.

My code for named formula is:

NamedFormula = Filter(DataverseTable; ...);;

patch function

Patch(Dataversetable;Item;
   {       
       ...: Self.Value
    }
);;
Refresh(Dataversetable)

 

Powerapps Version: 3.23102.20

 

Or am I doing something fundamentally wrong here? How else can I force an refresh/update of a named formula?
Thanks a lot for help.
Best
Micha

I wasn't able to repro it. Here is what I tried.

NamedFormula:

D = Filter(Accounts, 'Account Name' <> "Abc");

 

Added Gallery:

Gallery.Items = D;

ShantanuP_0-1698852497090.png

 

 

Added a button:

Button.OnSelect = Patch(Accounts, First(Accounts), {'Account Name':"Ian One Updated"})
 
Click the Button and I see updated gallery:

ShantanuP_1-1698852562782.png

 

Can you please share exact formulas on NamedFormula and in Patch function? Where you don't see the refresh reflected in your app?

Hi, thanks a lot for your help. I did a test in a new App where I recreated the same scenario and everything worked well. But in my existing app this issue still appears. I tried to turn on/off some of the properties under setting but nothing helped...

 

the complete formula

DeatilProgGal = Filter(Dispo_VA; 'Dispo_VA (Ansichten)'.'Aktive Dispo_VA'; 
                    (
                        VA_Von < Coalesce(varProgFilterDetailScreen;Today()) And
                        VA_Bis >= Coalesce(varProgFilterDetailScreen;Today())
                        )    
                    Or (
                        VA_Von >= Coalesce(varProgFilterDetailScreen;Today()) And
                        VA_Bis >= Coalesce(varProgFilterDetailScreen;Today())
                        )   
                    );;

on the gallery:

If(AktuelleSeite=Details_Site.Name;
Search( DeatilProgGal;    
    SearchProg_input.Value;"cr239_titel";"cr239_artist";"cr239_projectname")
)

 the patch:

Patch(Dispo_VA;Selected_VA;{Artist: Self.Value});;

 

SJC
Frequent Visitor

I had a similar issue with a named formula used in a gallery not updating based on the value of a modern Datepicker control in a dataverse custom page. The solution was to rename the control making sure to invalidate the reference in the named formula, save the screen, reload the page, then change the formula to include the new control name.

PetroVoronov
Frequent Visitor

I faced with similar issue. The logic inside the app it too complex.
To check the issue I made a new, simple app:

  • App.OnStart:

 

 

Collect(Test, {item: "Test"});

 

 

  • App.Formulas:

 

 

formulaTest = LookUp(Test, ThisRecord.item = "Test", item);
formulaCount = CountRows(Test);

 

 

  • Created the Toggle Item:
    • Defailt: 

 

 

Not(IsEmpty(Test))​

 

 

  • OnCheck:

 

 

ClearCollect(Test, {item: "Test"});​

 

 

  • OnUncheck: 

 

 

Clear(Test);​

 

 

  • LabelLocal:
    • Text: 

 

 

"Local: '" & LookUp(Test, ThisRecord.item = "Test", item) & "', Count: '" & CountRows(Test) & "'"

 

 

  • LabelFormula:
    • Text:

 

 

"Formula: '" & formulaTest & "', Count: '" & formulaCount & "'"

 

 

If I'm not wrong, the labels have to have the equal Text independently from the toggle value.
And what I received:

  • ToggleOn:

     

    PetroVoronov_3-1702548146854.png

     

  • ToggleOff: 
    PetroVoronov_4-1702548183655.png

     

For me it looks like - some formulas are recalculated (like CountRows), but some calculated once and cache the result (like Lookup).
Authoring version is: 3.23121.20 (Recommended on today).
Options: all by default.

PetroVoronov
Frequent Visitor

To dig deeply in an issue, I made some changes:

  • App.OnStart:

 

 

Collect(Test, {item: "Test", value: "First"});

 

 

  • App.Formulas:

 

 

formulaTest = LookUp(Test, ThisRecord.item = "Test", item);
formulaTest2 = LookUp(Test, ThisRecord.item = "Test", value);
formulaCount = CountRows(Test);

 

 

  • And one more toggle:
    • OnChek:

 

 

ClearCollect(Test, {item: "Test", value: "First"});​

 

 

  • OnUncheck:

 

 

ClearCollect(Test, {item: "Test", value: "Second"});​

 

 

  • And two labels:
    • Local: 

 

 

"Local: '" & LookUp(Test, ThisRecord.item = "Test", value) & "', Count: '" & CountRows(Test) & "'"​

 

 

  • Formula:

 

 

"Formula: '" & formulaTest2 & "', Count: '" & formulaCount & "'"​

 

 

And there is a results:

PetroVoronov_3-1702550372125.pngPetroVoronov_4-1702550406048.png

PetroVoronov_7-1702550713694.pngPetroVoronov_8-1702550746041.png

 

 

 

PetroVoronov_5-1702550435818.pngPetroVoronov_6-1702550473437.png

 

I.e. if LookUp return something - it's working equal as local as in formulas...

But if it return null, empty , blank response - the previous one is returned in formula!

 

Helpful resources

Announcements

Community will be READ ONLY July 16th, 5p PDT -July 22nd

Dear Community Members,   We'd like to let you know of an upcoming change to the community platform: starting July 16th, the platform will transition to a READ ONLY mode until July 22nd.   During this period, members will not be able to Kudo, Comment, or Reply to any posts.   On July 22nd, please be on the lookout for a message sent to the email address registered on your community profile. This email is crucial as it will contain your unique code and link to register for the new platform encompassing all of the communities.   What to Expect in the New Community: A more unified experience where all products, including Power Apps, Power Automate, Copilot Studio, and Power Pages, will be accessible from one community.Community Blogs that you can syndicate and link to for automatic updates. We appreciate your understanding and cooperation during this transition. Stay tuned for the exciting new features and a seamless community experience ahead!

Summer of Solutions | Week 4 Results | Winners will be posted on July 24th

We are excited to announce the Summer of Solutions Challenge!   This challenge is kicking off on Monday, June 17th and will run for (4) weeks.  The challenge is open to all Power Platform (Power Apps, Power Automate, Copilot Studio & Power Pages) community members. We invite you to participate in a quest to provide solutions in the Forums to as many questions as you can. Answers can be provided in all the communities.    Entry Period: This Challenge will consist of four weekly Entry Periods as follows (each an “Entry Period”)   - 12:00 a.m. PT on June 17, 2024 – 11:59 p.m. PT on June 23, 2024 - 12:00 a.m. PT on June 24, 2024 – 11:59 p.m. PT on June 30, 2024 - 12:00 a.m. PT on July 1, 2024 – 11:59 p.m. PT on July 7, 2024 - 12:00 a.m. PT on July 8, 2024 – 11:59 p.m. PT on July 14, 2024   Entries will be eligible for the Entry Period in which they are received and will not carryover to subsequent weekly entry periods.  You must enter into each weekly Entry Period separately.   How to Enter: We invite you to participate in a quest to provide "Accepted Solutions" to as many questions as you can. Answers can be provided in all the communities. Users must provide a solution which can be an “Accepted Solution” in the Forums in all of the communities and there are no limits to the number of “Accepted Solutions” that a member can provide for entries in this challenge, but each entry must be substantially unique and different.    Winner Selection and Prizes: At the end of each week, we will list the top ten (10) Community users which will consist of: 5 Community Members & 5 Super Users and they will advance to the final drawing. We will post each week in the News & Announcements the top 10 Solution providers.  At the end of the challenge, we will add all of the top 10 weekly names and enter them into a random drawing.  Then we will randomly select ten (10) winners (5 Community Members & 5 Super Users) from among all eligible entrants received across all weekly Entry Periods to receive the prize listed below. If a winner declines, we will draw again at random for the next winner.  A user will only be able to win once overall. If they are drawn multiple times, another user will be drawn at random.  Individuals will be contacted before the announcement with the opportunity to claim or deny the prize.  Once all of the winners have been notified, we will post in the News & Announcements of each community with the list of winners.   Each winner will receive one (1) Pass to the Power Platform Conference in Las Vegas, Sep. 18-20, 2024 ($1800 value). NOTE: Prize is for conference attendance only and any other costs such as airfare, lodging, transportation, and food are the sole responsibility of the winner. Tickets are not transferable to any other party or to next year’s event.   ** PLEASE SEE THE ATTACHED RULES for this CHALLENGE**   Week 1 Results: Congratulations to the Week 1 qualifiers, you are being entered in the random drawing that will take place at the end of the challenge. Community MembersNumber of SolutionsSuper UsersNumber of Solutions @anandm08  23 @WarrenBelz  31 @DBO_DV  10 @Amik  19 AmínAA 6 @mmbr1606  12 @rzuber  4 @happyume  7 @Giraldoj  3@ANB 6 (tie)   @SpongYe  6 (tie)     Week 2 Results: Congratulations to the Week 2 qualifiers, you are being entered in the random drawing that will take place at the end of the challenge. Community MembersSolutionsSuper UsersSolutions @anandm08  10@WarrenBelz 25 @DBO_DV  6@mmbr1606 14 @AmínAA 4 @Amik  12 @royg  3 @ANB  10 @AllanDeCastro  2 @SunilPashikanti  5 @Michaelfp  2 @FLMike  5 @eduardo_izzo  2   Meekou 2   @rzuber  2   @Velegandla  2     @PowerPlatform-P  2   @Micaiah  2     Week 3 Results: Congratulations to the Week 3 qualifiers, you are being entered in the random drawing that will take place at the end of the challenge.   Week 3:Community MembersSolutionsSuper UsersSolutionsPower Apps anandm0861WarrenBelz86DBO_DV25Amik66Michaelfp13mmbr160647Giraldoj13FLMike31AmínAA13SpongYe27     Week 4 Results: Congratulations to the Week 4 qualifiers, you are being entered in the random drawing that will take place at the end of the challenge.   Week 4:Community MembersSolutionsSuper UsersSolutionsPower Apps DBO-DV21WarranBelz26Giraldoj7mmbr160618Muzammmil_0695067Amik14samfawzi_acml6FLMike12tzuber6ANB8   SunilPashikanti8

Check Out | 2024 Release Wave 2 Plans for Microsoft Dynamics 365 and Microsoft Power Platform

On July 16, 2024, we published the 2024 release wave 2 plans for Microsoft Dynamics 365 and Microsoft Power Platform. These plans are a compilation of the new capabilities planned to be released between October 2024 to March 2025. This release introduces a wealth of new features designed to enhance customer understanding and improve overall user experience, showcasing our dedication to driving digital transformation for our customers and partners.    The upcoming wave is centered around utilizing advanced AI and Microsoft Copilot technologies to enhance user productivity and streamline operations across diverse business applications. These enhancements include intelligent automation, AI-powered insights, and immersive user experiences that are designed to break down barriers between data, insights, and individuals. Watch a summary of the release highlights.    Discover the latest features that empower organizations to operate more efficiently and adaptively. From AI-driven sales insights and customer service enhancements to predictive analytics in supply chain management and autonomous financial processes, the new capabilities enable businesses to proactively address challenges and capitalize on opportunities.    

Updates to Transitions in the Power Platform Communities

We're embarking on a journey to enhance your experience by transitioning to a new community platform. Our team has been diligently working to create a fresh community site, leveraging the very Dynamics 365 and Power Platform tools our community advocates for.  We started this journey with transitioning Copilot Studio forums and blogs in June. The move marks the beginning of a new chapter, and we're eager for you to be a part of it. The rest of the Power Platform product sites will be moving over this summer.   Stay tuned for more updates as we get closer to the launch. We can't wait to welcome you to our new community space, designed with you in mind. Let's connect, learn, and grow together.   Here's to new beginnings and endless possibilities!   If you have any questions, observations or concerns throughout this process please go to https://aka.ms/PPCommSupport.   To stay up to date on the latest details of this migration and other important Community updates subscribe to our News and Announcements forums: Copilot Studio, Power Apps, Power Automate, Power Pages

Users online (810)