Why my ClearCollect is empty ?

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Posted on by Voltes

271

Hi guys,

I've put my ClearCollect in App - Onstart, after save the app and play, then close again, check the collection is build but it is empty. Anyone can help me why ?

Here is my ClearCollect, which only to have 1 record contains string :

ClearCollect(DetailHeader,
 {
 Order : "Order",
 Date: "Date",
 Category: "Category",
 Description: "Description",
 Qty: "Qty",
 Price: "Price" 
 }
)

Please help.

Thanks

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Building Power Apps

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CNT 10,921 Super User 2024 Season 1 on at

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@Voltes How do you know that there are no records in the collection? Did you do a CountRows(DetailHeader) and check?

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GarethPrisk 2,828 on at

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Putting something like that in the App OnStart will execute the first time the app runs in the studio, and if you "Run Onstart" of the app.

https://docs.microsoft.com/en-us/powerapps/maker/canvas-apps/functions/object-app#onstart-property

What can be happening is that if you are editing the App OnStart code, then that Collection definition is technically changing each time. When you change how a collection is created, it will no longer exist until you execute the collect again.

The Run Onstart should be fine for you. Your code is legitimate. Just a quirk of the studio.

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Voltes 271 on at

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Hi both,

Thanks for replying. Yes, I'm not sure why it is not working when I hit Play, and how I know it is empty is by looking at View - collection. the columns is there but no record.

However, lastly I tried that Apps -> RunOnStart. It is fine after that.

Thanks again both.

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