按钮(父级)禁用时变暗(淡出)边框

Question

我有一个按钮模板，其中包含网格周围的边框。禁用该按钮后，边框仍显示为活动状态。
有没有办法在按钮禁用时淡出边框并在启用按钮时显示边框？

<Button.Template>
    <ControlTemplate>
        <Border BorderThickness="{Binding Path=BorderThickness, RelativeSource={RelativeSource Mode=FindAncestor,
            AncestorType=Button}}" BorderBrush="{Binding Path=BorderBrush, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=Button}}" 
                Opacity="{Binding Path=BorderBrush, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=Button}}">

带下拉菜单的按钮是我的，其他是典型的按钮

Answer 1

你需要

一个触发器。 在这里，我在禁用时将边框设置为绿色。

    <Button Content="test" Name="test" Height="20">
        <Button.Template>
            <ControlTemplate>
                <Border BorderThickness="{Binding Path=BorderThickness, RelativeSource={RelativeSource Mode=FindAncestor,
        AncestorType=Button}}" BorderBrush="{Binding Path=BorderBrush, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=Button}}" 
            Opacity="{Binding Path=BorderBrush, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=Button}}">
                </Border>
                <ControlTemplate.Triggers>
                    <Trigger Property="IsEnabled" Value="false">
                        <Setter Property="BorderBrush" Value="Green" />
                    </Trigger>
                </ControlTemplate.Triggers>
            </ControlTemplate>
        </Button.Template>
    </Button>