JetBrains Rider 2021.2 Help

XAML Preview

Enable XAML preview for WPF

When this option is enabled, XAML files that contain WPF UI markup will have a preview area alongside the text editor. Buttons at the top right corner of the editor will let you choose how to place the preview within the editor tab.

Otherwise, such files will open as text documents.

JetBrains Rider: XAML Preview
Automatically show preview for supported WPF filesWhen this option is enabled, a preview area will be shown in XAML files that contain WPF UI markup as soon as you open them.
Last modified: 30 September 2021