microsoft / microsoft/Power-Fx

PowerFx implementation in Dataverse Accelerator (Low Code Plugins) does not yet support IsType

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Dominant language
C#
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Description

The IsType function in the Dataverse Accelerator implementation of the PowerFx runtime does not yet support IsType (returns the error "IsType is a known but not supported function").

This is an issue because AsType on its own is not failure-safe, so the low code plugins cannot safely handle polymorphic attributes.

I'm willing to help implement this capability with my own Open-Source contributions, just looking for guidance on where to contribute as well as any implementation guidelines the FT team has to offer.

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by locating the Dataverse Accelerator PowerFx runtime implementation and examining how AsType and unsupported functions are handled. The work is done when IsType is supported instead of returning the known-but-not-supported error and low code plugins can safely handle polymorphic attributes.

Written by the indexing model from the issue text.

Assessment

Tech stack
csharp
Domain
backend
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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