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Bulk update of items with photos.

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Posted on by CU23052155-0

Hi, I have successfully navigated updating a collection of items, using the for all function. This is where I multi select a number of items and update them all at once with information in an edit form.

I now need to apply a function where I can update the selected items with a photo and a signature. This is proving difficult, does anyone have a workaround to do this? Currently tried with camera control but I cannot include in my for all the attachments

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Vish WR 3,748 on at

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@CU23052155-0

Bulk Update of Items with Photos and Signatures

ForAll cannot directly handle Camera and Signature control output in attachments. The fix is a two-step approach — capture first, then patch.

Store photo and signature before the loop:

powerfxSet(varPhoto, Camera1.Photo);

Set(varSignature, SignatureCanvas1.Image);

Step 2 — Patch attachments inside ForAll:

powerfxForAll(

colSelectedItems,

Patch(

YourSharePointList,

LookUp(YourSharePointList, ID = ThisRecord.ID),

{

Attachments: Table(

{ Name: "photo_" & ThisRecord.ID & ".jpg", Value: varPhoto },

{ Name: "signature_" & ThisRecord.ID & ".png", Value: varSignature }

)

}

)

);

Requires SharePoint list Attachments feature to be enabled. For large selections, trigger a Power Automate flow instead — more reliable than client-side ForAll at scale.

Vishnu WR

LinkedIn - My Tech Space

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WarrenBelz 155,838 Most Valuable Professional on at

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Hi @CU23052155-0,

This blog of mine sets out the saving and retreiving/updating of a collection including attachments. You can ignore the hidden image (your files are already in the correct format) and the offline saivng, but the principle is the same.

So to save to the Collection
Collect( colYourName, { YourField1: YourContro11Output, YourField2: YourContro12Output, . . . . . . Attachments: Table( { DisplayName: YourPhotoNameHere, AbsoluteUri: Blank(), Id: YourCameraName.Photo, Value: YourCameraName.Photo }, { DisplayName: YourSignatureNameHere, AbsoluteUri: Blank(), Id: YourSignatureControl.Image, Value: YourSignatureControl.Image } ) } );

and then add to the list as new records
Patch( YourSPListName, ForAll( colYourName As _Data, { YourField1: _Data.YourField1, YourField2: _Data.YourField2, . . . . . . . Attachments: Table( ForAll( _Data.Attachments As _Files, { DisplayName: _Files.DisplayName, AbsoluteUri: Blank(), Id: _Files.Id, Value: _Files.Value } ) ) } ) )

Please ✅ Does this answer your question if my post helped you solve your issue. This will help others find it more readily. It also closes the item. If the content was useful in other ways, please consider answering Yes to Was this reply helpful? or give it a Like ♥
Visit my blog Practical Power Apps LinkedIn

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11manish 3,333 on at

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You generally cannot directly bulk-update attachment controls inside a ForAll() loop because attachments are form-bound objects in Power Apps.

The best workaround is:

store the camera/signature image in a variable

use ForAll + Patch against image/file columns

or use Power Automate to create attachments for each selected record

For enterprise apps, image/file columns are usually much easier and more scalable than traditional attachment controls for bulk operations.

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WarrenBelz 155,838 Most Valuable Professional on at

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Hi @CU23052155-0,

Out of interest, I have what I posted working on a production app, so it is certainly possible.

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