WPF复选框TwoWay绑定不工作

<DataGridcheckBoxcolumn 
     Binding="{Binding Path=Foo,Mode=TwoWay,updatesourcetrigger=PropertyChangeD}"
 />

public bool Foo{ get; set; }

当您在DataContext中设置Foo时,您需要调出PropertyChanged事件.通常,它看起来像：

public class ViewModel : INotifyPropertyChanged
    {
        private bool _foo;

        public bool Foo
        {
            get { return _foo; }
            set
            {
                _foo = value;
                OnPropertyChanged("Foo");
            }
        }

        public event PropertyChangedEventHandler PropertyChanged;

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

如果您调用Foo = someNewvalue,PropertyChanged事件将被引发,您的UI应该被更新