Feature Request: Provide CanExecute() method with a new attribute [CanExecuteDependsOnProperty(nameof(IsBusy))]

[suugbut]

In my opinion ObservableProperty (as a publisher) should not know anything about ICommand (as a subscriber). So the following

public partial class PersonViewModel : ObservableObject
{
    [ObservableProperty]
    [NotifyCanExecuteChangedFor(nameof(SaveCommand))]
    private boo isBusy;

    [RelayCommand(CanExecute = nameof(CanSave))]
    private void Save() { }
    private bool CanSave() => !IsBusy;
}

is more elegant if it can be written as follows.

public partial class PersonViewModel : ObservableObject
{
    [ObservableProperty]
    private bool isBusy;

    [RelayCommand(CanExecute = nameof(CanSave))]
    private void Save() { }
    
    [CanExecuteDependsOnProperty(nameof(IsBusy))] // <======= the requested attribute.
    private bool CanSave() => !IsBusy;
}

With CanExecuteDependsOnProperty we can also make CanSave(), for example, depend on properties defined in the base class.

public partial class BaseViewModel : ObservableObject
{
    [ObservableProperty]
    private bool isBusy;
}
public partial class PersonViewModel : BaseViewModel
{
    [RelayCommand(CanExecute = nameof(CanSave))]
    private void Save() { }
    
    [CanExecuteDependsOnProperty(nameof(IsBusy))] // <======= the requested attribute.
    private bool CanSave() => !IsBusy;
}

Any comments are welcome.

[bijington]

At first glance the detail looks good but I'm afraid you have the wrong repository. This is for the .NET MAUI Community Toolkit but you want the .NET Community Toolkit. I don't have the power to transfer issue so can you please open it there and I will close one down. Feel free to refer to this in the new issue to help others if they stumble across this.