Power Apps Collections Basics

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#PowerApps #Collections
In this video we'll continue our learning from building a Power Apps Wordle application. We'll explore what collections are and how we can use them to store and work with data locally in our Power Apps.
We will uncover the different use cases for collections in Power Apps, how to add items to a collection, how to remove items and how to clear out a collection.
OTHER VIDEOS YOU MAY LIKE:
💠 My Power Apps UI Process (1st video in the series): • My Power Apps UI Desig...
LINKS
🔗 Power Wordle Application Download: github.com/pnp/powerapps-samp...
🔗 Collections documentation: docs.microsoft.com/en-us/powe...
Table of Contents:
00:00 - Intro
00:35 - What are Collections?
01:31 - Why would you use Collections?
03:43 - Building a keyboard in Power Apps
04:22 - Adding a new item to a collection
05:42 - Using the Self() Function
06:46 - Removing an item from a collection
07:48 - Clearing a Collection
09:33 - Tip: Use Concurrent for performance
12:56 - Download the Power Wordle App

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Опубликовано:

21 июл 2024

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Комментарии : 21

@deba121 Год назад

Awesome !! In love with Power App and you !

@AprilDunnam Год назад

Happy to hear that!

@gutoquerubino109 2 года назад

Hello April, my name is Guto Querubino and I'm from Brazil, your videos are excellent!! Congratulations!!!

@AprilDunnam 2 года назад

Thank you so much for the great feedback :)

@dgarg2149 2 года назад

Thanks for this informative video.Can we append/,merge rows of two different tables in one collection;one table records are filtered based on condition & second table records as it is.Thanks

@kerrykreiter445 7 месяцев назад

Great explanation! Thank you

@AprilDunnam 7 месяцев назад

Thanks, glad you found it helpful!

@davidcarrico3385 2 года назад

Excellent video. Correct me if wrong, but another use case for collections is for offline use, so if the user is going to be in a place with intermittent coverage, as long as they open the app and load the collections when they are attached to the network, they could then use the app without a connection and then transfer results once they are back in a place with good coverage.

@teresaagustin5191 2 года назад

Thank you for the great video April. I am interested in learning more about the offline functionality David is referring to. Our Manufacturing area apps would have to operate in airplane mode so any apps I make for them would have to collect information via a Collection and upload it later. Of course your other followers might have other offline scenarios so I think a number of us could benefit from a video on this. If, as part of your series on Collections you could cover how to do this, we would appreciate having your take on it. Thank you for all you do!

@IMChrisThom Год назад

If I can ask since I'm still learning, why and when would you use collections vs tables? I've seen some people using tables, especially within components. What is exactly is the differences and advantages/disadvantages? I really am enjoying your videos and appreciate your time.

@DavidAdediran Год назад

Great question. A table is a data type, while a Collection is a (local) data source which stores tables. More on tables: Tables are groups of records with the same columns (or fields). It can be created and used in-line with the Table function or it can be assigned to a variable. The video mentions that Set and UpdateContext are only used for simple types. That is not accurate. These functions can be used to save table values in a variable. Collections on the other hand, are data sources that allow you to store table values (similar to a variable) but in addition, you can create and append new records (or rows), update and delete existing records similar to external data sources such as SharePoint list & Dataverse. As mentioned in the video, Collections are local to your app i.e. they exist "in memory" while your app is running and are discarded as soon as the session is closed. This makes them super-fast but also transient. As for the components you've observed, it is likely because the component just needs a table without a need to create, update or delete any row (or record). An example of such component may be a navigation component that needs a table value to display navigation options. A table value will suffice but you can also pass in a Collection since Collections also return table values anyway.

@Fernando_Calero Год назад

Nice video April, thanks. What about that lovely music at the end, is that your husband with the guitar or is it you?

@AprilDunnam Год назад

Thanks for noticing! That's my husband playing 🙂

@Richkotite1 Год назад

I'm a Power Apps newbie, are collections similar to VBA arrays?

@AprilDunnam Год назад

Great question! Yes, collections are very similar to VBA arrays. They are both used to store lists of data

@shameelen5603 2 года назад

Hey @April Dunnam, Could you please do a video on how to fetch the data from multiple sharepoint list to powerautomate for creating a pdf document. Eg: we need to create a purchase order and the supplier details are in one list and the item details are in another list. And we need to create a pdf document by fetching corresponding datas from the lists…. Waiting for your reply….