c# - 绑定(bind) EasingColorKeyframe 值

Question

我使用 Expression Blend 制作了一个简单的动画。问题是我不知道如何绑定(bind)每个关键帧的值，混合不允许我这样做，并且在更改 XAML 之后，绑定(bind)似乎没有像我预期的那样工作。

这是 XAML:

  <ColorAnimationUsingKeyFrames  RepeatBehavior="Forever" Storyboard.TargetProperty="(TextElement.Foreground).(GradientBrush.GradientStops)[1].(GradientStop.Color)" Storyboard.TargetName="mainToggleButton">
            <EasingColorKeyFrame KeyTime="0:0:0.2" Value="{Binding RelativeSource={RelativeSource Self}, Path=LowColor}"/>
            <EasingColorKeyFrame KeyTime="0:0:0.4" Value="{Binding RelativeSource={RelativeSource Self}, Path=HighColor}"/>
            <EasingColorKeyFrame KeyTime="0:0:0.8" Value="{Binding RelativeSource={RelativeSource Self}, Path=HighColor}"/>
            <EasingColorKeyFrame KeyTime="0:0:1"   Value="{Binding RelativeSource={RelativeSource Self}, Path=LowColor}"/>
            <EasingColorKeyFrame KeyTime="0:0:1.4" Value="{Binding RelativeSource={RelativeSource Self}, Path=HighColor}"/>
            </ColorAnimationUsingKeyFrames>

下面是代码后面的DependencyProperties

        [Category("Flash")]
        public Brush HighColor
        {
            get { return (Brush)GetValue(HighColorProperty); }
            set { SetValue(HighColorProperty, value); }
        }

        // Using a DependencyProperty as the backing store for HighColor.  This enables animation, styling, binding, etc...
        public static readonly DependencyProperty HighColorProperty =
            DependencyProperty.Register("HighColor", typeof(Brush), typeof(AttentionControl), new UIPropertyMetadata(Brushes.LightGreen));


        [Category("Flash")]
        public Brush LowColor
        {
            get { return (Brush)GetValue(LowColorProperty); }
            set { SetValue(LowColorProperty, value); }
        }

        // Using a DependencyProperty as the backing store for LowColor.  This enables animation, styling, binding, etc...
        public static readonly DependencyProperty LowColorProperty =
            DependencyProperty.Register("LowColor", typeof(Brush), typeof(AttentionControl), new UIPropertyMetadata(Brushes.DarkGreen));

动画会工作，但绑定(bind)不起作用，好像颜色不会通过动画改变。

谢谢。

Answer 1

动画好像还行，我会在透明背景上对其进行测试，这样您就可以看到所有颜色(如果有的话)....我也无法找到每个关键帧的总持续时间和开始时间(我怀疑这是问题所在)但你永远不知道，它绝对值得一试。