如何在WPF中声明var的类型委托RoutedPropertyChangedEventHandler？

Question

我找不到为我的用户控件类型委托RoutedPropertyChangedEventHandler声明属性的语法（如滑块ValueChange处理程序）

http://msdn.microsoft.com/en-us/library/ms589771.aspx

Answer 1

您正在尝试创建活动：

public event RoutedPropertyChangedEventHandler MyEvent;

但是，为了使其正常工作，您需要创建routed event

public static readonly RoutedEvent TapEvent = EventManager.RegisterRoutedEvent(
    "Tap", RoutingStrategy.Bubble, typeof(RoutedEventHandler), typeof(MyButtonSimple));

// Provide CLR accessors for the event
public event RoutedEventHandler Tap
{
        add { AddHandler(TapEvent, value); } 
        remove { RemoveHandler(TapEvent, value); }
}