How to force render of property panel?

Question

How can I force the SharePoint Framework to re-render the property panel of my Client Side Web Part?

In detail I would like to execute the getPropertyPaneConfiguration() method once again when the user performs a certain action which needs to update the rendered controls in the property panel.

Answer 1

You can do this by calling the refresh() method of the Property Pane which you can access through the web part's context property:

this.context.propertyPane.refresh();

Answer 2

I had the same question and Waldek's answer didn't work twice for me, but this did:

this.context.propertyPane.close();
this.context.propertyPane.open();

Don't worry, there will be no visual feedback of the re-opening of the panel.