PocketBook_MVVM/MVVM/ToolKit/BaseViewModel.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Text;
using System.Threading.Tasks;
using System.Xml.Linq;

namespace ToolKit
{
    public abstract class BaseViewModel : INotifyPropertyChanged
    {
        public event PropertyChangedEventHandler? PropertyChanged;


        private void NotifyPropertyChange(string propertyName)
        {
            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
        }

        protected virtual void setProperty<T>(T member, T value, Action action, [CallerMemberName] string propertyName = "")
        {
            if (EqualityComparer<T>.Default.Equals(member, value)) { return; }
            member = value;
            action();
            NotifyPropertyChange(propertyName);
        }

        protected virtual void setProperty<T>(ref T member, T value, [CallerMemberName] string propertyName = "")
        {
            if (EqualityComparer<T>.Default.Equals(member, value)) { return; }
            member = value;
            NotifyPropertyChange(propertyName);
        }
    }
}