Mvvm: What to do when your view model already derives from another class?

[karmeye]

My view models subclass a base view model so I cannot derive from ObservableObject. So now I think I have to do something like this:

public class MyViewModel : BaseViewModel
{
	public MyViewModelData Data = new();

        public void CallMe() {}
}

public partial class MyViewModelData : ObservableObject
{
	[ObservableProperty]
	private int myInt;

	partial void OnMyIntChanged(int value)
	{
		// How to call CallMe
	}
}

Is it possible to bypass the MyViewModelData class and have MyInt property in MyViewModel. Then it's also easier to call other methods in MyViewModel.

[karmeye]

ObservableObjectAttribute