[Bug] [Xamarin.Mac] RadioButton in detail page of master detail page : IsChecked not binding on launch, Multiple selection

[Suryask0]

Description

In XF 5.0.0.2012, On the detail page of a master detail page,

• multiple radio buttons can be selected.
• radio button is not checked on navigating to the page even when the IsChecked property is set true.

Steps to Reproduce

1. Create a Master-detail page for Xamarin Forms app from the default template available on visual studio.
2. Add a Mac project to it.
3. Add few radio buttons to the detail page.
4. Run the application on Mac platform.
5. Select the radio buttons.

Expected Behavior

• Only one radio button should be selected/checked at a time of one radio group.
• The checked radio button should remain checked when launching the detail view.

Actual Behavior

• Multiple radio buttons are getting checked in a radio group.
• The radio buttons are not checked/selected when launching the detail view.

Basic Information

• Version with issue: XF 5.0.02012

• Last known good version:

• Platform Target Frameworks:

  • Xamarin.Mac Modern

• Android Support Library / AndroidX Version:

• NuGet Packages:

• Affected Devices:

Environment

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Build Logs

Screenshots

Reproduction Link

Workaround

[JunielKatarn]

It appears the platform-specific RadioButtonRenderer's FormsNSButton Pressed and Released actions are not being set.
(Reproduced using Xamarin.Forms.ControlGallery.macOS).

			public override void MouseDown(NSEvent theEvent)
			{
				Pressed?.Invoke();

				base.MouseDown(theEvent);

				Released?.Invoke();
			}

[JunielKatarn]

Also, seems like OnElementPropertyChanged is just not being called when selecting the radio button.

[JunielKatarn]

Solved. See referencing PR.

Summary: No event coming from the NSButton control was being triggered.

[mhrastegari]

Same issue here