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These are helpers to interact with the property pane of the web part. Currently this helper allows you to show a spinner when the property pane is loading resources. This could be loading controls, fetching data, ... Normally you would get a white property pane until all data is loaded.

How to use this control in your solutions

  1. Check that you installed the @pnp/spfx-property-controls dependency. Check out The getting started page for more information about installing the dependency.
  2. Import the following modules to your main web part TypeScript file:
import { PropertyPaneHelpers } from '@pnp/spfx-property-controls/lib/helpers';
  1. You can use the following example to add the spinner to your web part property pane:
 * Load property pane resources
protected async loadPropertyPaneResources(): Promise<void> {
    bgColor: "white",
    spinnerProps: {
      styles: () => {
        return {
          circle: {
            height: 80,
            width: 80

  // Write here the code you want to add to load your resources



The setSpinner method allows you to set the following properties:

Property Type Required Description
bgColor string no Spinner background color
className string no Class name to style the spinner yourself.
spinnerProps ISpinnerProps no Spinner properties from Office UI Fabric.