WPF 数据绑定

public event PropertyChangedEventHandler PropertyChanged;

    protected void OnPropertyChanged(string propertyName)
    {
        if (PropertyChanged != null)
        {
            PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
        }
    }

WPF 数据绑定

原文：https://www.cnblogs.com/LCLBook/p/11811766.html