React controls & platform libraries

When you use React and platform libraries, you're using the same infrastructure used by the Power Apps platform. This means you no longer have to package React and Fluent libraries individually for each control. All controls share a common library instance and version to provide a seamless and consistent experience.

By reusing the existing platform React and Fluent libraries, you can expect the following benefits:

• Reduced control bundle size
• Optimized solution packaging
• Faster runtime transfer, scripting, and control rendering
• Design and theme alignment with the Power Apps Fluent design system

With the benefits available by reusing these component resources, we expect this approach will become the preferred way all Power Apps code components will be created after this feature reaches general availability.

Piezīme

With GA release, all existing virtual controls will continue to function. However, they should be rebuilt and deployed using the latest CLI version (>=1.37) to facilitate future platform React version upgrades.

Prerequisites

As with any component, you must install Visual Studio Code and the Microsoft Power Platform CLI as described here: Prerequisites

Piezīme

If you have already installed Power Platform CLI for Windows, make sure you are running the latest version by using the pac install latest command. The Power Platform Tools for Visual Studio Code should update automatically.

Create a React component

Piezīme

These instructions expect that you have created code components before. If you have not, see this tutorial: Create your first component

There's a new --framework (-fw) parameter for the pac pcf init command. Set the value of this parameter to react.

The following table shows the long form of the commands:

Parameter	Value
--name	ReactSample
--namespace	SampleNamespace
--template	field
--framework	react
--run-npm-install	true (default)

The following PowerShell command uses the parameter shortcuts and creates a React component project and run npm-install in the folder where you run the command:

pac pcf init -n ReactSample -ns SampleNamespace -t field -fw react -npm

You can now build and view the control in the test harness as usual using npm start.

After you build the control, you can package it inside solutions and use it for model-driven apps (including custom pages) and canvas apps like standard code components.

Differences from standard components

This section describes the differences between a React component and a standard component.

ControlManifest.Input.xml

The control element control-type attribute is set to virtual rather than standard.

Piezīme

Changing this value does not convert a component from one type to another.

Within the resources element, find two new platform-library element child elements like the following example:

<resources>
  <code path="index.ts" order="1" />
  <platform-library name="React" version="16.14.0" />
  <platform-library name="Fluent" version="9.46.2" />
</resources>

Piezīme

For more information about valid platform library versions, see Supported platform libraries list.

We recommend using platform libraries for Fluent 8 and 9. If you don't use Fluent, you should remove the platform-library element where the name attribute value is Fluent.

Index.ts

The ReactControl.init method for control initialization doesn't have div parameters because React controls don't render the DOM directly. Instead ReactControl.updateView returns a ReactElement that has the details of the actual control in React format.

bundle.js

React and Fluent libraries aren't included in the package because they're shared, therefore the size of bundle.js is smaller.

Sample controls

The following controls are included in the samples. They function the same as their standard versions but offer better performance since they are virtual controls.

Sample	Description	Link
ChoicesPickerReact	The standard ChoicesPickerControl converted to be a React Control.	ChoicesPickerReact Sample
FacepileReact	The ReactStandardControl converted to be a React Control.	FacepileReact

Supported platform libraries list

Platform libraries are made available both at the build and runtime to the controls that are using platform libraries capability. Currently, the following versions are provided by the platform and are the highest currently supported versions.

Name	npm package name	Allowed version range	Version loaded
React	react	16.14.0	17.0.2 (Model), 16.14.0 (Canvas)
Fluent	@fluentui/react	8.29.0	8.29.0
Fluent	@fluentui/react	8.121.1	8.121.1
Fluent	@fluentui/react-components	>=9.4.0 <=9.46.2	9.46.2

Piezīme

The application might load a higher compatible version of a platform library at runtime, but the version might not be the latest version available. Fluent 8 and Fluent 9 are each supported but can not both be specified in the same manifest.

FAQ

Q: Can I convert an existing standard control to a React control using platform libraries?

A: No. You must create a new control using the new template and then update the manifest and index.ts methods. For reference, compare the standard and react samples described above.

Q: Can I use React controls & platform libraries with Power Pages?

A: No. React controls & platform libraries are currently only supported for canvas and model-driven apps. In Power Pages, React controls don't update based on changes in other fields.

Related articles

What are code components?
Code components for canvas apps
Create and build a code component
Learn Power Apps component framework
Use code components in Power Pages