• .NET Core Version:
  .Net SDK 5.0.100-rc.2.20477.2
• Have you experienced this same bug with .NET Framework?:
  No
• More info
  This is a regression issue, cannot repro in .Net Core 3.1

Minimal repro:

1. Open the attached WinFormsApp9.zip application in VS, then build and run it.
   WinFormsApp9.zip
2. Launch Narrator to focus on each ListView items

Actual behavior:
Narrator: it cannot announce the check/uncheck state of ListView item when enabling listView checkBox property
Inspect: Missing Toggle.ToggleState property, and IsTogglePattermAvailable property is false


Expected behavior:
Narrator: it announce the check/uncheck state of ListView item as on/off when enabling listView checkBox property
Inspect: it has Toggle.ToggleState property and supports IsTogglePattermAvailable property