cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
mr-dang
Community Champion
Community Champion

Solution: Overcome Delegation for Aggregate Functions

I've previously written about delegation in these threads:

Recently @PaulD1 posted a video in which he presented another solution for overcoming the 500 record limitation using nested galleries. It reminds me of @hpkeong's use of pagination. This has inspired me to create a new solution for not only reading >500 records, but performing aggregate functions >500 records and filters.

 

New challenges: 

  • When showing records in a gallery, only 100 records are presented at a time even if your formulas are delegable. You can get all 500 if you scroll more, but that's not a reliable solution.

 

Big idea:

  • Create a parent gallery with a table containing the whole numbers 1-1000 or however high you want.
    This will represent n, the number of groups of x amount of records to display in each row of the parent gallery.
  • Insert a nested gallery (child gallery) which will show records from your datasource in intervals of x records.
    For our purposes we will use x=100 since galleries can only show 100 records at a time.
  • Option 1: Collect the live table periodically, and perform calculations upon that collection as in my earlier solutions.
  • Option 2: Insert controls that will calculate upon each child gallery.

 

Limitations:

  • This solution is impractical and intense on resources since it's showing data live in gallery. So far, refreshes take ~5s for 1500 records
  • Changes may cause the nested galleries to flicker and visually reload all items.
  • This solution is limited to however many n is scalable for your purposes
  • I've only tried this for CDS

 

Steps:

  1. Create a table in Excel with however many groups of 100 records you expect in your datasource. For me, I listed numbers 1-1000, so I can't have >100,000 records in a datasource. My use cases won't come close, so this is solution fits my needs.

    Note: my table, named "Primes," has other columns for determining if the number is prime. It's just an existing table I have around--you just need one column with a series of whole numbers.
    powerapps primes.png

     

  2. Insert a Slider. This slider is for testing purposes and longevity of this solution. At the moment, a gallery can only show 100 records at a time even if its formula is delegable. That means even calculations will only process the 100 shown until you scroll down for more. Should this limitation ever change, you can tweak this Slider accordingly.

    This slider will range from 100-500 and will represent the number of records that will be displayed in each interval, and thus, nested gallery.
    Change Slider1.Min to:
    100
    
    Change Slider1.Max to:
    500
    
    Change Slider1.Default to:
    100
  3. Insert a Button that will determine the first and last record of your datasource. This information is used to determine how many n groups of 100 amount of records are actually in your datasource. If your datasource has 500 records, it has n=5 groups of 100 records.

    Set(firstRecord,First(datasource));
    Set(lastRecord,First(Sort(datasource,RecordId,Descending)))

    This means firstRecord is the first record in the datasource. The last record in the datasource is determined by sorting the datasource descending starting with the one with the highest ID number (RecordId), then taking the first result. Unfortunately Last(datasource) doesn't seem delegable.

    Note: RecordId is a field that is unique and automatically created for numbering each record in CDS. Replace this with whatever is the unique ID field for your records.

  4. Insert a gallery whose Items property is set to your table of whole numbers. 
    Add columns to the table to determine which set of 100 records a record belongs to. I do this in PowerApps instead of the Excel table because it is a more flexible solution.

    AddColumns(
        Filter(Primes,
            Number<=RoundUp((lastRecord.RecordId-firstRecord.RecordId)/Slider1.Value,0)
    ), "min",(Number-1)*Slider1.Value, "max",Number*Slider1.Value )

    Orange
    My table of whole numbers is called "Primes."

    Green and Blue
    The table of whole numbers will be filtered to show only the whole numbers less than or equal to n as calculated in blue. This means if you subtract the ID of the first record from the ID of the last record and divide it by 100, the default value of Slider1, you'll find out how many groups of 100 are in your datasource.

    Note: if your unique identifier is not configured as a value, consider wrapping it in Value() or multiplying by 1.

    Magenta
    The filtered table has columns "min" and "max" added that will later be used to calculate the range of records for each interval: 1-100, 101-200, 201-300, etc. for x=100. If you adjust the Slider, this gallery will attempt to show that number of records in the nested gallery. It doesn't work yet.

    Number is the name of the column in which the whole numbers are listed.

  5. Insert a gallery into your parent gallery. I'll refer to it as the "nested gallery" or "child gallery." 

    Change the Items property of the nested gallery to:
    Filter(datasource,
        RecordId>=firstRecord.RecordId+ThisItem.min,
        RecordId<firstRecord.RecordId+ThisItem.max
    )

    This means that each record in the parent gallery will show a child gallery that houses the records from your datasource that fall in different intervals of 100. The first child gallery will show records 1-100, the second child gallery will show records 101-200 and so on.

    The unique identifier RecordId must fall between a number greater than the minimum and maximum values calculated in the previous step. Everything is relative to the first record which doesn't change for our purposes.

    Note: again, if your unique identifier (RecordId) is not configured as a value, consider wrapping it in Value() or multiplying by 1.

  6. Insert a Label inside the child gallery to show some data that will help you see that it is working.

 

___________________________________

 

Checkpoint:

At this point, you should be seeing 100 records in each child gallery until it reaches the n number of groups of 100.

 

In the next reply, I'll be describing how to perform aggregate functions upon this nested gallery scheme.

 

___________________________________

Microsoft Employee
@8bitclassroom
2 REPLIES 2
mr-dang
Community Champion
Community Champion

Reserved.

Microsoft Employee
@8bitclassroom
hpkeong
Community Champion
Community Champion

Hi @mr-dang

 

I have seen the blog, too and even another Video on Youtube (about an hour video) on the same topics.

Glad to have another solution with even shorter and easier to understand scenario.

I will try this whenve time allowed.

I remmeber i have used both Pagination and Timer to resolve this issue and another wishing that Delegation can always be improved even for CDS for:

- ! (Not)

 

Have a nice day.

hpkeong

Helpful resources

Announcements

Tuesday Tip | How to Get Community Support

It's time for another Tuesday Tip, your weekly connection with the most insightful tips and tricks that empower both newcomers and veterans in the Power Platform Community! Every Tuesday, we bring you a curated selection of the finest advice, distilled from the resources and tools in the Community. Whether you’re a seasoned member or just getting started, Tuesday Tips are the perfect compass guiding you across the dynamic landscape of the Power Platform Community.       This Week: All About Community Support Whether you're a seasoned community veteran or just getting started, you may need a bit of help from time to time! If you need to share feedback with the Community Engagement team about the community or are looking for ways we can assist you with user groups, events, or something else, Community Support is the place to start.   Community Support is part of every one of our communities, accessible to all our community members.   Within each community's Community Support page, you'll find three distinct areas, each with a different focus to help you when you need support from us most. Power Apps: https://powerusers.microsoft.com/t5/Community-Support/ct-p/pa_community_support Power Automate: https://powerusers.microsoft.com/t5/Community-Support/ct-p/mpa_community_support Power Pages: https://powerusers.microsoft.com/t5/Community-Support/ct-p/mpp_community_support Copilot Studio: https://powerusers.microsoft.com/t5/Community-Support/ct-p/pva_community-support   Community Support Form If you need more assistance, you can reach out to the Community Team via the Community support form. Choose the type of support you require and fill in the form accordingly. We will respond to you promptly.    Thank you for being an active part of our community. Your contributions make a difference!   Best Regards, The Community Management Team

Community Roundup: A Look Back at Our Last 10 Tuesday Tips

As we continue to grow and learn together, it's important to reflect on the valuable insights we've shared. For today's #TuesdayTip, we're excited to take a moment to look back at the last 10 tips we've shared in case you missed any or want to revisit them. Thanks for your incredible support for this series--we're so glad it was able to help so many of you navigate your community experience!   Getting Started in the Community An overview of everything you need to know about navigating the community on one page!  Community Links: ○ Power Apps ○ Power Automate  ○ Power Pages  ○ Copilot Studio    Community Ranks and YOU Have you ever wondered how your fellow community members ascend the ranks within our community? We explain everything about ranks and how to achieve points so you can climb up in the rankings! Community Links: ○ Power Apps ○ Power Automate  ○ Power Pages  ○ Copilot Studio    Powering Up Your Community Profile Your Community User Profile is how the Community knows you--so it's essential that it works the way you need it to! From changing your username to updating contact information, this Knowledge Base Article is your best resource for powering up your profile. Community Links: ○ Power Apps ○ Power Automate  ○ Power Pages  ○ Copilot Studio    Community Blogs--A Great Place to Start There's so much you'll discover in the Community Blogs, and we hope you'll check them out today!  Community Links: ○ Power Apps ○ Power Automate  ○ Power Pages  ○ Copilot Studio    Unlocking Community Achievements and Earning Badges Across the Communities, you'll see badges on users profile that recognize and reward their engagement and contributions. Check out some details on Community badges--and find out more in the detailed link at the end of the article! Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio    Blogging in the Community Interested in blogging? Everything you need to know on writing blogs in our four communities! Get started blogging across the Power Platform communities today! Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio   Subscriptions & Notifications We don't want you to miss a thing in the community! Read all about how to subscribe to sections of our forums and how to setup your notifications! Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio   Getting Started with Private Messages & Macros Do you want to enhance your communication in the Community and streamline your interactions? One of the best ways to do this is to ensure you are using Private Messaging--and the ever-handy macros that are available to you as a Community member! Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio   Community User Groups Learn everything about being part of, starting, or leading a User Group in the Power Platform Community. Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio   Update Your Community Profile Today! Keep your community profile up to date which is essential for staying connected and engaged with the community. Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio   Thank you for being an integral part of our journey.   Here's to many more Tuesday Tips as we pave the way for a brighter, more connected future! As always, watch the News & Announcements for the next set of tips, coming soon!

Hear what's next for the Power Up Program

Hear from Principal Program Manager, Dimpi Gandhi, to discover the latest enhancements to the Microsoft #PowerUpProgram, including a new accelerated video-based curriculum crafted with the expertise of Microsoft MVPs, Rory Neary and Charlie Phipps-Bennett. If you’d like to hear what’s coming next, click the link below to sign up today! https://aka.ms/PowerUp  

Tuesday Tip: Community User Groups

It's time for another TUESDAY TIPS, your weekly connection with the most insightful tips and tricks that empower both newcomers and veterans in the Power Platform Community! Every Tuesday, we bring you a curated selection of the finest advice, distilled from the resources and tools in the Community. Whether you’re a seasoned member or just getting started, Tuesday Tips are the perfect compass guiding you across the dynamic landscape of the Power Platform Community.   As our community family expands each week, we revisit our essential tools, tips, and tricks to ensure you’re well-versed in the community’s pulse. Keep an eye on the News & Announcements for your weekly Tuesday Tips—you never know what you may learn!   Today's Tip: Community User Groups and YOU Being part of, starting, or leading a User Group can have many great benefits for our community members who want to learn, share, and connect with others who are interested in the Microsoft Power Platform and the low-code revolution.   When you are part of a User Group, you discover amazing connections, learn incredible things, and build your skills. Some User Groups work in the virtual space, but many meet in physical locations, meaning you have several options when it comes to building community with people who are learning and growing together!   Some of the benefits of our Community User Groups are: Network with like-minded peers and product experts, and get in front of potential employers and clients.Learn from industry experts and influencers and make your own solutions more successful.Access exclusive community space, resources, tools, and support from Microsoft.Collaborate on projects, share best practices, and empower each other. These are just a few of the reasons why our community members love their User Groups. Don't wait. Get involved with (or maybe even start) a User Group today--just follow the tips below to get started.For current or new User Group leaders, all the information you need is here: User Group Leader Get Started GuideOnce you've kicked off your User Group, find the resources you need:  Community User Group ExperienceHave questions about our Community User Groups? Let us know! We are here to help you!

Super User of the Month | Ahmed Salih

We're thrilled to announce that Ahmed Salih is our Super User of the Month for April 2024. Ahmed has been one of our most active Super Users this year--in fact, he kicked off the year in our Community with this great video reminder of why being a Super User has been so important to him!   Ahmed is the Senior Power Platform Architect at Saint Jude's Children's Research Hospital in Memphis. He's been a Super User for two seasons and is also a Microsoft MVP! He's celebrating his 3rd year being active in the Community--and he's received more than 500 kudos while authoring nearly 300 solutions. Ahmed's contributions to the Super User in Training program has been invaluable, with his most recent session with SUIT highlighting an incredible amount of best practices and tips that have helped him achieve his success.   Ahmed's infectious enthusiasm and boundless energy are a key reason why so many Community members appreciate how he brings his personality--and expertise--to every interaction. With all the solutions he provides, his willingness to help the Community learn more about Power Platform, and his sheer joy in life, we are pleased to celebrate Ahmed and all his contributions! You can find him in the Community and on LinkedIn. Congratulations, Ahmed--thank you for being a SUPER user!  

Tuesday Tip: Getting Started with Private Messages & Macros

Welcome to TUESDAY TIPS, your weekly connection with the most insightful tips and tricks that empower both newcomers and veterans in the Power Platform Community! Every Tuesday, we bring you a curated selection of the finest advice, distilled from the resources and tools in the Community. Whether you’re a seasoned member or just getting started, Tuesday Tips are the perfect compass guiding you across the dynamic landscape of the Power Platform Community.   As our community family expands each week, we revisit our essential tools, tips, and tricks to ensure you’re well-versed in the community’s pulse. Keep an eye on the News & Announcements for your weekly Tuesday Tips—you never know what you may learn!   This Week's Tip: Private Messaging & Macros in Power Apps Community   Do you want to enhance your communication in the Community and streamline your interactions? One of the best ways to do this is to ensure you are using Private Messaging--and the ever-handy macros that are available to you as a Community member!   Our Knowledge Base article about private messaging and macros is the best place to find out more. Check it out today and discover some key tips and tricks when it comes to messages and macros:   Private Messaging: Learn how to enable private messages in your community profile and ensure you’re connected with other community membersMacros Explained: Discover the convenience of macros—prewritten text snippets that save time when posting in forums or sending private messagesCreating Macros: Follow simple steps to create your own macros for efficient communication within the Power Apps CommunityUsage Guide: Understand how to apply macros in posts and private messages, enhancing your interaction with the Community For detailed instructions and more information, visit the full page in your community today:Power Apps: Enabling Private Messaging & How to Use Macros (Power Apps)Power Automate: Enabling Private Messaging & How to Use Macros (Power Automate)  Copilot Studio: Enabling Private Messaging &How to Use Macros (Copilot Studio) Power Pages: Enabling Private Messaging & How to Use Macros (Power Pages)

Top Solution Authors
Top Kudoed Authors
Users online (3,036)