WPF，这个事件触发器该怎么写

Question

<Button Padding="30" Content="熊俊">            
   <Button.Triggers>
      <EventTrigger RoutedEvent="Button.MouseEnter" >         //这里该怎么写，使Content变为"张三"                    
      </EventTrigger>                   
   </Button.Triggers>
</Button>
问题：
一个事件触发器，当鼠标移到Button上时，使Content属性变为"张三"，普通的属性触发器就不用了，我指的是用事件触发器。WPF

Answer 1

        <Button Name="huitest" Content="李四">
            <Button.Triggers>
            <EventTrigger RoutedEvent="Button.MouseEnter">
                    <BeginStoryboard>
                        <Storyboard>
                            <StringAnimationUsingKeyFrames Storyboard.TargetProperty="Content" >
                                <DiscreteStringKeyFrame Value="张三" KeyTime="0:0:0" />                               
                            </StringAnimationUsingKeyFrames>
                        </Storyboard>
                    </BeginStoryboard>
                </EventTrigger>
            </Button.Triggers>
        </Button>参考 http://msdn.microsoft.com/zh-cn/library/System.Windows.Media.Animation.StringAnimationUsingKeyFrames(v=vs.100).aspx

Answer 2

整成动画啊额，只是引用而已。你不加duration 和一些渐变参数就不是“动画”了。
但实际上EventTrigger也主要用在动画中。