NotificationObject中有一个此方法的重载：
protected void RaisePropertyChanged<T>(Expression<Func<T>> propertyExpression);
我们在以下方式写入属性的设置：
RaisePropertyChanged(() => PropertyVariable);
解决方法@H_404_12@
表达< TDelegate>表示lambda表达式的抽象语法树.所以你只需要分析这个语法树来找出属性名称：
protected void RaisePropertyChanged<T>(Expression<Func<T>> propertyExpression)
{
var memberExpr = propertyExpression.Body as MemberExpression;
if (memberExpr == null)
throw new ArgumentException("propertyExpression should represent access to a member");
string memberName = memberExpr.Member.Name;
RaisePropertyChanged(memberName);
}
protected void RaisePropertyChanged<T>(Expression<Func<T>> propertyExpression)
{
var memberExpr = propertyExpression.Body as MemberExpression;
if (memberExpr == null)
throw new ArgumentException("propertyExpression should represent access to a member");
string memberName = memberExpr.Member.Name;
RaisePropertyChanged(memberName);
}
