MVVM简单问题

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http://msdn.microsoft.com/en-us/magazine/cc163328.aspx

我认为这样做的正常方法是使用 INotifyPropertyChanged 接口。我不是100%确定它是如何工作的,因为我对WPF还是相当陌生的,但是通常只要属性发生更改,就会触发一个事件,传入属性的名称,并更新该属性的绑定。

public class TestProperty : INotifyPropertyChanged
{
        public Boolean IsSelected 
        {
            get { return isSelected; }
            set 
            {
                isSelected = value; 
                this.NotifyPropertyChanged("IsSelected");
            }
        }
        private bool isSelected;

        /// <summary>
        /// Occurs when a property value changes.
        /// </summary>
        public event PropertyChangedEventHandler PropertyChanged;

        /// <summary>
        /// Notifies the property changed.
        /// </summary>
        /// <param name="propertyName">Name of the property.</param>
        private void NotifyPropertyChanged(String propertyName)
        {
            this.VerifyPropertyName(propertyName);
            if (PropertyChanged != null)
            {
                PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
            }
        }
}

您可能会发现 WPF Application Framework (WAF ) 很有帮助。它们显示了模型如何通过事件与ViewModel或视图通信。