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Load Data - show list of files

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Posted on by Community Power Pla... Microsoft Employee

Hi All

I've built an app that works offline (loads records, does a bunch of stuff, syncs)

I've added an option to save data locally to iOS device. Right now the file names are hard-coded. I'd like to name the files with a pattern like username_date.

Is it possible to list the files saved with SaveData?

TIA

Mark

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v-xida-msft Microsoft Employee on at

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Hi @Anonymous ,

Could you please share a bit more about your scenario?

Do you want to list the files saved using SaveData function within your iOS device or canvas app?

If you want to list the files saved using SaveData function within your iOS device itself, I afraid that there is no way to achieve your needs in PowerApps currently.

If you want to list the saved files within your canvas app, I think the LoadData function could achieve your needs. Within your app, you could use LoadData function to load cached data (stored using SaveData function) into a collection, then you could modify the collection data, e.g. rename the file name. After that, save the modified collection into your local device using SaveData function again.

Note: The data stored using SaveData function in your app, could only be loaded using LoadData function.

Best regards,

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Community Power Pla... Microsoft Employee on at

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thanks for reply. I know how to use LoadData and SaveData. All working fine, but I want save multiple files and show user of files that can be loaded?

Regards

Mark

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v-xida-msft Microsoft Employee on at

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Hi @Anonymous ,

Do you want to save multiple files into your local device once time within your app?

If you want to save multiple files into your local device once time within your app, I think the Attachments control could achieve your needs.

On your side, you could consider add a Edit form in your app, and add a SP List data source in your app, connect the Edit form to your SP List, then enable "Attachments" field data card in the Edit form, select the Attachments control within the form, then copy it (Ctrl + C), paste it in your other screen of your app. After that, you could use the Attachments control to upload files.

Please check and see if the following video resources could help in your scenario:

https://www.youtube.com/watch?v=kQVYid1p_vA

https://www.youtube.com/watch?v=UYK7yruBHDM

I have made a test on my side, please consider take a try with the following workaround:

Set the OnSelect property of the "Save" button to following:

ClearCollect( FileCollection, ForAll(RenameColumns(FileAttachments.Attachments,"Name","Name1","Value", "Value1"), {FileName: Name1, FileContent: Value1}) ); SaveData(FileCollection, "LocalData")

Set the OnStart property of the App to following:

LoadData(FileCollection, "LocalData", true)

Please consider take a try with above solution, check if the issue is solved.

Best regards,

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Community Power Pla... Microsoft Employee on at

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Hi Kris

Thanks for reply

Attachments don;t help. I need to save to collections when offline and I want multiple iteration. I can use a dynamic name (username/datatime for example, but it;s no good if I can't show a user the list of files to load

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v-xida-msft Microsoft Employee on at

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Hi @Anonymous ,

The Attachments control could work when you are Offline (Regardless of whether you are Online or Offline, the Attachments control works well). On your side, if you want to assign a dynamic name for these attached files, please take a try with the following wortkaround:

Set the OnSelect property of the "Save" button to following:

ClearCollect( FileCollection, ForAll(RenameColumns(FileAttachments.Attachments,"Name","Name1","Value", "Value1"), {FileName: Text(Now(), "yyyymmddHHmmss") & "_" & Name1, FileContent: Value1}) // Modify formula here, re-assign a dynamic name for these attached files ); SaveData(FileCollection, "LocalData")

Set the OnStart property of the App to following:

LoadData(FileCollection, "LocalData", true)

Please consider take a try with above solution, check if the issue is solved.

Best regards,

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Community Power Pla... Microsoft Employee on at

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Hi Kris

I don;t think you're understanding the issue (or I'm not understanding the proposed solution). I have no attachments and don;t need attachments. i want dynamic names for SaveData and the ability to show the list of files save by save data

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