cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
Tono_Analyst
Regular Visitor

updating/initializing context variable on app start

Hi!

 

Context

I have a gallery that is filtered by a context variable 'table_ID' and a dropdown box that updates 'table_ID' on change. UpdateContext({table_ID: ...}). The table_ID variable updates correctly on change and filters the gallery correctly.

 

Problem

The issue I am having is that when the app starts, nothing is assigned to 'table_ID' and hence the gallery is blank.

I have tried updating the context of 'table_ID':

  •  when the screen is 'On Visisble', however this only works if I transition to the screen - as opposed to when the app starts.
  • 'On App Start', however, this did not update the context of the variable. 

I am not sure how to initialize the context variable 'table_ID' based on the default value that exists within the dropbox. I am not sure what the flow/process order of Power Apps is, but is it possible that it is executing the update context command before the value has loaded into the dropbox (dropbox content is based on a lookup)?

 

A workaround I can think of is to have a 'menu screen' that navigates to the screen with the variable which would correctly trigger the 'on visible update context' command. However, ideally I would like to initialize the context and go straight to the screen. 

 

Thank you for any help in advance!

 

 

1 ACCEPTED SOLUTION

Accepted Solutions

Hi @Tono_Analyst 

There is no option to get dropdown value on screen 1 from App start. But we can do another approach which is to add a filter. In my case customerkey never be 0, so this returns an empty.

 

Example

 

If(!IsBlank(FilteredApplied) && FilteredApplied, ColFilteredData, Filter(DimCustomer, CustomerKey=0))

 

 

I hope this solves the problem

View solution in original post

5 REPLIES 5

Hi @Tono_Analyst 

 

UpdateContext creates a local variable, so this can be used within a single screen. On the other hand, SET is the global variable and that can be used throughout the application.

 

UpdateContext - Local Variable

Set - Global Variable

 

So if you are looking 'table_ID' for multiple screens then use

Set(table_ID, SomeValue)

 

If you like this post, give it a Thumbs up. Where it solved your request, Mark it as a Solution to enable other users to find it.

Tono_Analyst
Regular Visitor

Thank you @StalinPonnusamy  for your response. The variable is only relevant for the first screen, hence why I used a local variable. 

 

Is there a way to update/initialize the local variable for the first screen when the app launches? As I mentioned in my previous post, 'on start'(app) and 'on visible'(screen) did not work for updating the context of the variable.

 

Essentially, I want to define the local variable on the first screen that is opened when the app is launched.

 

Hi @Tono_Analyst,

 

App and the first screen having separate contexts. So there is no way to define it.

 

But I'm looking at your requirement, We should display the gallery even no id is selected. For example

 

Gallary Items Property should like this

 

If(!IsBlank(Table_Id), ColFilteredData, MainDataSource)

 

 

Here is my code that was implemented on a similar case

StalinPonnusamy_0-1626498605010.png

 

Thank you again, this is close to what I want to achieve.

 

However, instead of displaying the entire gallery if the Table_ID is blank, I would like to update the local variable table_ID.

 

I basically never want Table_ID to be blank, as there will always be values in the dropbox to filter. It seems like this may not be possible. Perhaps I can use a global variable and set it on start based on the values within the dropbox? Although I am not sure if the dropbox values will be defined at that point for the set function to refer to...

 

Hi @Tono_Analyst 

There is no option to get dropdown value on screen 1 from App start. But we can do another approach which is to add a filter. In my case customerkey never be 0, so this returns an empty.

 

Example

 

If(!IsBlank(FilteredApplied) && FilteredApplied, ColFilteredData, Filter(DimCustomer, CustomerKey=0))

 

 

I hope this solves the problem

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 (1,488)