通过ExitActions中的动画恢复到初始状态

Question

我为选项卡控件制作了一个模板.它的作用是在鼠标悬停时采用边框和动画的背景.

当鼠标离开时,它应该从Background属性中读取当前值并相应地设置它们.

<MultiTrigger>
    <MultiTrigger.Conditions>
        <Condition Property="IsSelected" Value="false"/>
        <Condition Property="IsMouseOver" Value="true"/>
    </MultiTrigger.Conditions>
    <MultiTrigger.EnterActions>
        <BeginStoryboard>
            <Storyboard>
                <ColorAnimation Storyboard.TargetName="Bd" 
                                Storyboard.TargetProperty="Background.GradientStops[0].Color" To="#003372" 
                                Duration="0:0:0.2"/>
                <ColorAnimation Storyboard.TargetName="Bd" 
                                Storyboard.TargetProperty="Background.GradientStops[1].Color" To="#025092" 
                                Duration="0:0:0.2"/>
                <ColorAnimation Storyboard.TargetName="Bd" 
                                Storyboard.TargetProperty="Background.GradientStops[2].Color" To="#003372" 
                                Duration="0:0:0.2"/>
            </Storyboard>
        </BeginStoryboard>
    </MultiTrigger.EnterActions>
    <MultiTrigger.ExitActions>
        <BeginStoryboard>
            <Storyboard>
                <ColorAnimation Storyboard.TargetName="Bd" 
                                Storyboard.TargetProperty="Background.GradientStops[0].Color" To="{TemplateBinding Background.GradientStops[0].Color}" 
                                Duration="0:0:0.2"/>
                <ColorAnimation Storyboard.TargetName="Bd" 
                                Storyboard.TargetProperty="Background.GradientStops[1].Color" To="{TemplateBinding Background.GradientStops[1].Color}" 
                                Duration="0:0:0.2"/>
                <ColorAnimation Storyboard.TargetName="Bd" 
                                Storyboard.TargetProperty="Background.GradientStops[2].Color" To="{TemplateBinding Background.GradientStops[2].Color}" 
                                Duration="0:0:0.2"/>
            </Storyboard>
        </BeginStoryboard>
    </MultiTrigger.ExitActions>
</MultiTrigger>

问题是

To="{TemplateBinding Background.GradientStops[0].Color}"部分不起作用.我应该在那里写什么？

Answer 1

不要To在ExitActions块中使用任何属性作为动画.然后,目标属性应该动画回原始值.