In order to achieve data binding in Gauge with MVVM pattern, you can refer the following procedure.
Create a new Forms Xaml Page in the PCL project and include the SfCircularGauge Xaml code in it.
Set the created Forms Xaml page as a MainPage in the constructor of the App class.
Include the required code example for Circular Gauge in the Forms Xaml Page. Here it is named as the HomePage.
Once you have included the Circular Gauge related code examples, set the ViewModel as a BindingContext for the SfCircularGauge.
The ViewModel implements INotifyPropertyChanged, so that the view is notified once the Value property gets changed.
So that Value property in the CircularPointer in the CircularGauge control can be dynamically updated by updating the Value property in the ViewModel.
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