以下方法只能实现一次绑定，如果MyVisible属性在ViewModel中被修改的话，不会影响DataGrid的Column的显示或者隐藏

后台代码

public partial class MainWindow : Window, INotifyPropertyChanged    {        public MainWindow()        {            InitializeComponent();            this.DataContext = this;        }         private IList
    
      mockData;        public IList
     
       MockData        {            get            {                if (mockData == null)                {                    mockData = new List
      
       ();                    mockData.Add(new DataGridItem("name1", "description_001", "message_001"));                    mockData.Add(new DataGridItem("name_002", "description_002", "message_002"));                    mockData.Add(new DataGridItem("name3", "description_003", "message_003"));                    mockData.Add(new DataGridItem("name_004", "description_004", "message_004"));                     mockData.Add(new DataGridItem("name5", "description_005", "message_005"));                    mockData.Add(new DataGridItem("name_006", "description_006", "message_006"));                    mockData.Add(new DataGridItem("name7", "description_007", "message_007"));                    mockData.Add(new DataGridItem("name_008", "description_008", "message_008"));                    mockData.Add(new DataGridItem("name9", "description_009", "message_009"));                }                return mockData;            }        }         private Visibility myVisible;        public Visibility MyVisible        {            get            {                return Visibility.Visible;            }            set            {                myVisible = value;            }        }    }    public class DataGridItem    {        public DataGridItem(string name, string description, string message)        {            this.Name = name;            this.Description = description;            this.Message = message;        }         public string Name { get; set; }        public string Description { get; set; }        public string Message { get; set; }    }