使用DropShadowEffect的WPF Image“高亮”不能绑定颜色 [英] WPF Image 'highlight' with DropShadowEffect can't bind color

问题描述

我创建了一个名为 ImageButton 的UserControl，我在MouseOver上使用DropShadowEffect将该按钮显示为活动。但是，我似乎无法绑定我的DropShadowEffect的Color属性。可能有人建议为什么这不起作用？

I have created a UserControl called ImageButton, and I am using a DropShadowEffect on MouseOver to show the button as 'active'. However, I cannot seem to bind the Color property of my DropShadowEffect. Could anyone suggest why this doesn't work?

XAML ;

<ControlTemplate x:Key="ActiveEffectTemplate" TargetType="{x:Type Controls:ImageButton}">
    <Image Name="image" Source="{TemplateBinding ImageSource}">
        <Image.Effect>
            <DropShadowEffect 
                Color="{Binding HighlightColour}"
                BlurRadius="20" 
                ShadowDepth="0"
                Opacity="1" 
                Direction="0"/>
        </Image.Effect>
    </Image>
</ControlTemplate>

代码背后;

public static readonly DependencyProperty HighlightColourProperty =
        DependencyProperty.Register("HighlightColour", typeof(Color), typeof(ImageButton));

    public Color HighlightColour
    {
        get { return (Color)GetValue(HighlightColourProperty); }
        set { SetValue(HighlightColourProperty, value); }
    }

推荐答案

我相信我解决了这个通过将以下内容放入我的绑定中：

I believe I solved this problem by putting the following into my binding;

RelativeSource={RelativeSource AncestorType={x:Type Controls:ImageButton}} 

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