该工具类实现INotifyPropertyChanged接口

///     /// 实现了属性更改通知的基类    /// 
    public class BaseNotifyPropertyChanged : System.ComponentModel.INotifyPropertyChanged    {        ///         /// 属性值变化时发生        /// 
        ///         protected virtual void OnPropertyChanged(string propertyName)        {            if (this.PropertyChanged != null)                this.PropertyChanged(this, new System.ComponentModel.PropertyChangedEventArgs(propertyName));        }        ///         /// 属性值变化时发生        /// 
        ///         protected virtual void OnPropertyChanged
        
         (Expression
         
          
           > propertyExpression)        {            var propertyName = (propertyExpression.Body as MemberExpression).Member.Name;            this.OnPropertyChanged(propertyName);        }        public virtual event System.ComponentModel.PropertyChangedEventHandler PropertyChanged;    }

使用时继承此类，然后在VM中的属性get使用:OnPropertyChanged(()=>PropertyName) ??难道不是应该Set

转载于:https://www.cnblogs.com/sjqq/p/8458369.html

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