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need help with using multiple attachmentcontrols

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Posted on by Community Power Pla... Microsoft Employee

i need to be able to use multiple attachments controls for file upload so i can activate them all at once with one button press.
this is my current formula for a single attachment control:

ForAll(
DataCardValue3_1.Attachments As Document,
'PowerAppV2->Createfile'.Run( {file:{
contentBytes: Document.Value,
name: Document.Name
}})
)

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Building Power Apps

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Pro_User_365 546 on at

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Hi @Anonymous,
To use multiple attachment controls for file upload with one button press, modify your formula to iterate through each attachment control. Assuming you have controls named DataCardValue3_1, DataCardValue3_2, etc., you can use the following formula:
ForAll( Concatenate( DataCardValue3_1.Attachments, DataCardValue3_2.Attachments, ... // Add more controls as needed ), 'PowerAppV2->Createfile'.Run( { file: { contentBytes: Document.Value, name: Document.Name } } ) )
This formula concatenates the attachments from all specified controls into a single list and then uses ForAll to iterate through that list, running the 'PowerAppV2->Createfile' for each attachment.

Give this a try, and it should help you upload files from multiple attachment controls with a single button press. 😊 Regards! Ali Shahzad
Pstork1 69,665 Most Valuable Professional on at

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to add to @Pro_User_365 's reply, which will run the flow once for each attachment. The only way to pass an array of attachments into the flow would be to put it inside a JSON() function and pass the array as a string. Then inside the flow you would need a Parse JSON to reconstitute the file array.
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hello ali shahzad

i put it into my powerapp but i got multiple errors from it
invalid number of arguments recieved 1 expected 2
the function concatenate has some invalid arguments
invalid argument type (table) expecting a text value instead
run has invalid arguments
incompatible type the 'file.contentBytes'column in the data source you're updating expects a 'blob' type and you're using a 'Error' type
name isn't valid 'document' isnt recognized

this is al i got from it basically everythoing has a red line under it
Pro_User_365 546 on at

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Hi @Pstork1 ,
To use multiple attachment controls for file upload with one button press, modify your formula to iterate through each attachment control. Assuming you have controls named DataCardValue3_1, DataCardValue3_2, etc., you can use the following formula:
ForAll( Concatenate( DataCardValue3_1.Attachments, DataCardValue3_2.Attachments, ... // Add more controls as needed ), 'PowerAppV2->Createfile'.Run( { file: { contentBytes: Document.Value, name: Document.Name } } ) )
This formula concatenates the attachments from all specified controls into a single list and then uses ForAll to iterate through that list, running the 'PowerAppV2->Createfile' for each attachment.
Give this a try, and it should help you upload files from multiple attachment controls with a single button press. 😊 Regards! Ali Shahzad
Pro_User_365 546 on at

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Hi @Anonymous,
To upload files from multiple attachment controls with one button press, you can modify your formula to iterate through each attachment control. Here's the adjusted formula:
ForAll( Concatenate( DataCardValue3_1.Attachments, DataCardValue3_2.Attachments, ... // Add more controls as needed ), 'PowerAppV2->Createfile'.Run( { file: { contentBytes: Document.Value, name: Document.Name } } ) )
This formula concatenates the attachments from all specified controls into a single list and then uses ForAll to iterate through that list, running the 'PowerAppV2->Createfile' for each attachment.
Give this a try, and it should help you upload files from multiple attachment controls with a single button press. 😊 Regards! Ali Shahzad
Pstork1 69,665 Most Valuable Professional on at

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As I said in my reply, that will run the flow once for each attachment in the control. That's fine if you want to run the flow multiple times. But if you want to upload the files as an array then you need to send them as json text and parse them again in the flow. Then you can access each file in that one flow run.