Data card blank values becomes not editable after patching to share point list

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Posted on by Dave_

Hi guys,

I am facing a really strange bug

Basically, I have an "offline" form that uses a local Collection as Data Source, that Updates the data back to a SharePoint list at the press of a button, and then Clear Collects the collection again and shows it in the Gallery

What I am experiencing is that, after I update the Collection to SharePoint, if there is a Data card Value (Text Input) which is Blank, when the collection is Clear Collected again from SharePoint, the text written as input does not get saved into the Collection.

This does not happen if the field, before being patched to SharePoint, was not blank, and I am able to edit it freely.

This doesn't happen either if the Data card Value is a control like a Toggle Button: the value gets edited and saved in the collection normally.

What am I doing wrong? There's something strange happening with Blank values?

Thanks in advanced.

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Building Power Apps

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v-siky-msft Microsoft Employee on at

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Hi @Dave_,

Can you share more details with you issue? some formulas and screenshots could be more helpful.
Also I want to know that how did you set collection to the data source of Form? For the moment, Form won't show the data of collection. so I feel strange with it.

Best regards,
Sik
Dave_ 10 on at

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Hi,
thanks for replying.

Yes you a right, I use the Form just as a container but then everything is done manually via "Patch" and "Form.Updates" statements
For example to save Locally:

Patch( Raccolta; If(Form1.Mode = FormMode.New; Defaults(Raccolta); Galleria.Selected); Form1.Updates)

To submit changes:
IfError( ForAll( Raccolta; If(!IsBlank(Raccolta[@ID]); Patch( 'SOURCE'; First(Filter('SOURCE'; ID = Raccolta[@ID])); { MACCHINA : MACCHINA; .... \\etc for every field ); Patch( 'SOURCE'; Defaults(SOURCE); { MACCHINA : MACCHINA; .... \\etc for every field } ) ) );; ClearCollect(Raccolta; LastN('SOURCE';25)) \\other stuff )

Tell me if it's clear enough...
All the Update proprieties of the Datacards are properly set to the right DataCardValue...
And again, the strange fact here is that if the DataCardValue is not blank before submitting everything work out well...

Do you think the problem is the Form.Updates statement?

Regards.
Dave_ 10 on at

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Hey guys,

still no solution here..... Have u managed to reproduce the problem?

looking forward some advise. Thanks
Dave_ 10 on at

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Still no solution here.... wondering if anybody actually knows
Ty.
v-siky-msft Microsoft Employee on at

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Hi @Dave_ ,
Apologize for my omission.
Could your try to toggle on the feature ” Formula-level error management”, and check if your issue still remains?
Best regards,
Sik
Dave_ 10 on at

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Hi,
unfortunately, it's already activated.
No errors are shown.
Dave.