ViewModelBase.cs

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Text;
using System.Threading.Tasks;
 
namespace Dreamine.MVVM.ViewModels
{
    public abstract partial class ViewModelBase : INotifyPropertyChanged
    {
        public event PropertyChangedEventHandler ? PropertyChanged;

        protected void OnPropertyChanged([CallerMemberName] string propertyName = null!)
        {
            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
        }

        protected bool SetProperty<T>(ref T field, T value, [CallerMemberName] string propertyName = null!)
        {
            if (EqualityComparer<T>.Default.Equals(field, value))
                return false;
 
            field = value;
            OnPropertyChanged(propertyName);
            return true;
        }

        protected virtual void OnCommandChanged(string commandName)
        {
            // 필요 시 커맨드 이름 기반으로 RaiseCanExecuteChanged 구현 가능
        }
    }
}