Set or update context inside ForAll function of PowerApps

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Posted on by Ananda

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I've a requirement, where I need to use updatecontext inside a ForAll function, I understand it's not supported.

Do you have any alternatives/ suggestion on this use case.

Please find the code below, any suggestion is really appreciated.

// I'm adding data into SharePoint List from a collection

ForAll (JobSheeWCollection,

Patch ('Job Sheet', Defaults('Job Sheet'),{

Title: Customer,

Mobile: Mobile,

Email: Email,

Address: Address,

MachineModel: Model,

JobType: InsType,

CustomerRemark: CustRemark,

EngRemark: EngRemark,

SLNo: SLNo,

TempID: ID,

JobID: "JOB No : 0" & Last('Job Sheet').ID + 1 } );

//Can't assign any variable here, from another collection

//UpdateContext( { sFileContent: Filter(SignatureList,FileContent in ID).FileContent } 😞 Not supported

Filter(SignatureList,FileContent in ID).FileContent; //Executes with no error

//Run a flow which accept 2 parameters (file name, file content), to upload file into sharepoint folder, and

//getting error in below line.

CreateSignature.Run( "JoobID:"& Last('Job Sheet').ID & ".png", JSON(Filter(SignatureList,FileContent in ID).FileContent)));

//Error

);

Thank you for your support.

Thank You
Ananda

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v-siky-msft Microsoft Employee on at

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Hi @ananda ,

Although it is not supported to define a variable in ForAll loop, you can collect data to collection, so use Collection to store and reference data.

However, what is the error in your case? I have some confusion with your code:

1. What does the Filter code mean? What is SignatureList? Why does this mean that 'FileContent in ID'?

2. You miss the JSONFormat in JSON function, it should be: JSON("Your Data",JSONFormat.IncludeBinaryData)

Please share more information.

Sik

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Ananda 147 on at

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Managed to execute the code without error, data saved, but images are not visible. now it's formatting issue.

ForAll (JobSheeWCollection,
Patch ('Job Sheet', Defaults('Job Sheet'),{
Title: Customer,
Mobile: Mobile,
Email: Email,
Address: Address,
MachineModel: Model,
JobType: InsType,
CustomerRemark: CustRemark,
EngRemark: EngRemark,
SLNo: SLNo,
TempID: ID,
JobID: "JOB No : 0" & Last('Job Sheet').ID + 1 } );
CreateSignature.Run("JOB No : 0"&Last('Job Sheet').ID &".png", "JOB No : 0"& Last('Job Sheet').ID &".png",
Mid(JSON(Filter(SignatureList,JobId in ID).FileContent,JSONFormat.IncludeBinaryData),Find(",",JSON(Filter (SignatureList,JobId in ID).FileContent,JSONFormat.IncludeBinaryData))+1, Len(JSON(Filter(SignatureList,JobId in ID).FileContent,JSONFormat.IncludeBinaryData)) - Find(",",JSON(Filter(SignatureList,JobId in ID).FileContent,JSONFormat.IncludeBinaryData))-3) ));

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v-siky-msft Microsoft Employee on at

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Hi @ananda,

Please share the flow steps, and why you need to define the JSON like that?

Sik

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