INotifyPropertyChanged + ObservableCollection 提供通知，客户端实时刷新

INotifyPropertyChanged 通知客户端属性值已更改。
ObservableCollection 表示一个动态数据集合，可在添加、删除项目时提供通知，使UI更新。
修改属性时更新，需要实体类继承NotifyPropertyChanged，使指定的属性提供通知机制。

    ObservableCollection<DemoDto> _DataList;

public class DemoDto : NotifyPropertyChangedEx
{
    public string Guid { get; set; }

    private bool _bChecked;
    public bool IsChecked
    {
        get => _bChecked;
        set => UpdateProperty(ref _bChecked, value);
    }
    
    private int _otherProperty;
    public int OtherProperty { get { return _otherProperty; } set { UpdateProperty(ref _otherProperty, value); } }
    
    public ObservableCollection<DemoDetail> InfoDetails { get; set; }
}

using System.ComponentModel;
using System.ComponentModel.DataAnnotations;

    public class NotifyPropertyChangedEx : INotifyPropertyChanged
    {
        public event PropertyChangedEventHandler PropertyChanged;
        private void OnPropertyChanged([System.Runtime.CompilerServices.CallerMemberName] string propertyName = "")
        {
            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
        }

        public void UpdateProperty<T>(ref T propertyValue, T newValue, [System.Runtime.CompilerServices.CallerMemberName]string propertyName = "")
        {
            if (Equals(propertyValue, newValue))
            {
                return;
            }
            propertyValue = newValue;
            OnPropertyChanged(propertyName);
        }
    }

或者

/// <summary>
/// 对象扩展
/// </summary>
public class DemoDtoEx : DemoDto, INotifyPropertyChanged
{
    private bool _bChecked;
    public bool IsChecked
    {
        get => _bChecked;
        set => UpdateProperty(ref _bChecked, value);
    }

    string _name;
    /// <summary>
    /// 名称
    /// </summary>
    public new string Name
    {
        get => _Name;
        set => UpdateProperty(ref _name, value);
    }

    public event PropertyChangedEventHandler PropertyChanged;
    private void OnPropertyChanged([System.Runtime.CompilerServices.CallerMemberName] string propertyName = "")
    {
        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
    }

    public void UpdateProperty<T>(ref T propertyValue, T newValue, [System.Runtime.CompilerServices.CallerMemberName] string propertyName = "")
    {
        if (Equals(propertyValue, newValue))
        {
            return;
        }
        propertyValue = newValue;
        OnPropertyChanged(propertyName);
    }
}

ObservableCollection与List互相转换

List<DemoDto> data = _DataList.ToList()
_DataList = new ObservableCollection<DemoDto>(data);