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Rex23
Frequent Visitor

White Screen when starting APP (works fine in Editor)

I am experiencing a white blank screen when starting my app. This is the first time this is happening after me building multiple apps with Power Apps. It is pretty much a simple commenting app for project management without much data. 

 

There are no errors in the application and just 2 delegeation warnings for huge datasets which should not apply here.

 

I would be very greatful if someone had a solution for this.

11 REPLIES 11
ArchitectMadhan
Memorable Member
Memorable Member

Hi @Rex23 ,

 

Are you loading those dataset on the Screen Load or App Load? You can also check the controls in screen that loads data from dataset. If it has many controls that loads lot of data in it, this white screen issue might happen.

 

If you find my solution helpful for resolving the issue, then please consider Accept it as the solution to help the other members find it more quickly.

- Architect Madhan
---------------------------------------------------------------------------------------------
Please click the 'Accept as Solution' button and give thumbs up, if it is helpful to you.
Rex23
Frequent Visitor

Not sure what you mean by app or screen load. I am calling the sources in the Items section of my galleries. I added the sources (Sharepoint List) in the data Part of the editor:

PAProblem1.JPG

I am not loading a lot of data (2 Sharepoint lists: 1. 2 Col / ~100Rows // 2. 6 Col / 10 Rows)

Can you specify what you mean by "controls"?

ArchitectMadhan
Memorable Member
Memorable Member

Hi @Rex23 ,

 

Explanation for App On Start(load), Screen On Visible (load) and Controls are given below. Please check all those places to see where the data load to the controls are happening.

ArchitectMadhan_0-1626879357870.png

 

If you find my solution helpful for resolving the issue, then please consider Accept it as the solution to help the other members find it more quickly.

 

- Architect Madhan
---------------------------------------------------------------------------------------------
Please click the 'Accept as Solution' button and give thumbs up, if it is helpful to you.
Rex23
Frequent Visitor

Neither of both. I am loading it in the items section of my gallery.

 

Rex23_0-1626946532887.png

And no. I have no controls on the start screen. Just a Form on another screen.

Startscreen Modules:

Rex23_1-1626946683432.png

 

 

 

ArchitectMadhan
Memorable Member
Memorable Member

Hi @Rex23,

 

I think the problem in your case is, you are loading the StartScreen with no controls (white blank screen) that loads as first screen(default) right? Is there any timer you set to show the StartScreen and then redirect to your Gallery Screen automatically?

If you have not done so, please have a timer set to show the StartScreen for 20 seconds and then use navigate function to redirect it to GalleryScreen.

 

If you find my solution helpful for resolving the issue, then please consider Accept it as the solution to help the other members find it more quickly.

 

- Architect Madhan
---------------------------------------------------------------------------------------------
Please click the 'Accept as Solution' button and give thumbs up, if it is helpful to you.
Rex23
Frequent Visitor

My Start Screen is my Gallery Screen. The first thing i am doing in the OnStart Section off the app is navigating to my Gallery Screen. This has always worked for me 😕

ArchitectMadhan
Memorable Member
Memorable Member

Hi @Rex23 ,

Please follow the below steps to resolve this issue.

ArchitectMadhan_0-1626952917955.png

If you find my solution helpful for resolving the issue, then please consider Accept it as the solution to help the other members find it more quickly.

- Architect Madhan
---------------------------------------------------------------------------------------------
Please click the 'Accept as Solution' button and give thumbs up, if it is helpful to you.
Rex23
Frequent Visitor

Hi ArchitectMadhan,

thanks for your approach but sadly it has not worked for me. Everything looks fine in the editor though. Do you think this might have something to do with the nested galleries i am using here for the first time? 

 

About your question: I am filtering the first dataset (a list of projects) by a second dataset which is a list of comments for some projects. I only want projects from the first dataset to appear if there are comments for it in the second dataset. (used for the nested galleries)

 

21415.JPG

 (here every project appear because i used you approach for Items)

ArchitectMadhan
Memorable Member
Memorable Member

Hi @Rex23 ,

You just want to show the list of projects from Entity A that has comments in Entity B. Do you want to show the comments also in the gallery? 

The below link will be helpful for your scenario. 

https://powerapps.microsoft.com/en-us/blog/one-to-many-relationships-for-canvas-apps/

 

If you find my solution helpful for resolving the issue, then please consider Accept it as the solution to help the other members find it more quickly.

- Architect Madhan
---------------------------------------------------------------------------------------------
Please click the 'Accept as Solution' button and give thumbs up, if it is helpful to you.

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