Include properties in generated ObservableObject class

[weitzhandler]

Overview

The ObservableObjectAttribute is very powerful in cutting a lot of boiler plate code and 'injecting' INPC stuff into a class.

I was wondering if we could take it a step further and wrap all of the source's virtual properties as well.

This is super useful when the entities are pre-existing or are coming from a 3rd party library. Rewriting all models with their properties is super tedious.

API breakdown

public class PersonModel
{
    public virtual string Name { get; set; }    
    public virtual int Age { get; set; }
    public virtual string Address { get; set; }
}

[ObservableObject(RegenerateProperties = true, ExcludeProperties = "Name,Address")]
public partial class PersonViewModel : Model
{
}

Generated:

public partial class PersonViewModel : Model, INotifyPropertyChanged, INotifyPropertyChanging
{

    // Everything that's already generated today
   
    public override int Age
    {
        get => _Age;
        set
        {
                if (!EqualityComparer<int>.Default.Equals(_Age, value))
                {
                    OnAgeChanging(value);
                    OnAgeChanging(default, value);
                    OnPropertyChanging(...);
                    _Age = value;
                    OnAgeChanged(value);
                    OnAgeChanged(default, value);
                    OnPropertyChanged(...);
                }
            }
        }
    }

    partial void OnAgeChanging(int value);
    ...        
}

Usage example

public void Main()
{
    var model = new PersonViewModel { Name = "John", Age = 30 };
    model.PropertyChanged = OnPersonChanged;
    model.Age = 42; // OnPersonChanged fired
}

Breaking change?

No

Alternatives

Castle.Core

Additional context

No response

Help us help you

Yes, I'd like to be assigned to work on this item

[weitzhandler]

Oops
I didn't remember I've already posted this question and posted a new one #1069.