Question

是否可以将其减少为单个触发器？

<Style x:Key="StatusTextBlock" TargetType="{x:Type TextBlock}">
    <Style.Triggers>
        <DataTrigger Binding="{Binding Path=Text, 
            RelativeSource={RelativeSource Self}}" Value="Running">
            <Setter Property="Foreground" Value="Green"></Setter>
        </DataTrigger>
        <DataTrigger Binding="{Binding Path=Text, 
            RelativeSource={RelativeSource Self}}" Value="Paused">
            <Setter Property="Foreground" Value="Yellow"></Setter>
        </DataTrigger>
        <DataTrigger Binding="{Binding Path=Text, 
            RelativeSource={RelativeSource Self}}" Value="Stopped">
            <Setter Property="Foreground" Value="Red"></Setter>
        </DataTrigger>
    </Style.Triggers>
</Style>

Answer 1

如果"Running"和"Stopped"是唯一两个可用案例，您可以将其中一个设置为属性，并且只使用一个触发器：

<Style x:Key="StatusTextBlock" TargetType="{x:Type TextBlock}">
    <Setter Property="Foreground" Value="Green" /> <!--default case == Running -->
    <Style.Triggers>
        <DataTrigger Binding="{Binding Path=Text, 
            RelativeSource={RelativeSource Self}}" Value="Stopped">
            <Setter Property="Foreground" Value="Red"></Setter>
        </DataTrigger>
    </Style.Triggers>
</Style>

将多个触发器重构为一个

1 个答案: