Question

我无法将MouseOver样式应用于ContentPresenter内的Path。

我有一个包含ContentPresenter的按钮样式：

<Style x:Key="ContentButton" TargetType="{x:Type Button}">
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type Button}">
                <ContentPresenter
                x:Name="contentPresenter"
                Content="{TemplateBinding Content}">
                    <ContentPresenter.Resources>
                    <Style TargetType="{x:Type Path}"
                        BasedOn="{StaticResource ContentButtonPathStyle}"/>
                    </ContentPresenter.Resources>
                </ContentPresenter>

这是一种风格，所以我可以在路径上设置翻转效果：

<Style x:Key="ContentButtonPathStyle" TargetType="{x:Type Path}">
    <Style.Triggers>
        <Trigger Property="IsMouseOver" Value="True">
            <Setter Property="Fill" Value="#FF00FF10"/>
            <Setter Property="Stroke" Value="Red"/>
            <Setter Property="StrokeThickness" Value="6"/>
        </Trigger>
    </Style.Triggers>
    <Setter Property="Stroke" Value="Red"/>
    <Setter Property="Fill">
        <Setter.Value>
            <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
                <GradientStop Color="#FFB4B3E7" Offset="0"/>
                <GradientStop Color="#FF0800FF" Offset="1"/>
            </LinearGradientBrush>
        </Setter.Value>
    </Setter>
</Style>

我还有一个包含路径的图标资源文件：

<Viewbox x:Key="MyIcon">
    <Grid>
        <Path Data="M78,296 L37.5,306.5 45.5,354.5 123.5,343.5 z" />
    </Grid>
</Viewbox>

最后，我创建了一个按钮并将Viewbox资源分配给内容：

<Button Style="{DynamicResource ContentButton}">
    <ContentPresenter Content="{DynamicResource MyIcon}"/>
</Button>

使用“BasedOn”来设置ContentPresenter内容的样式是我在这里找到的一种技术：

http://social.msdn.microsoft.com/forums/en-US/wpf/thread/412b1747-60e9-4b9a-8f8f-bd56f3aff875/

然而，它对我不起作用......我花了很多时间试图解决这个问题！

有什么想法吗？

谢谢！

根据Mackho的优秀答案，这是我的最终XAML。

我还为IsPressed添加了一个DataTriggeer，效果很好！

我希望这有助于某人...

首先，风格：

<Style x:Key="ContentButtonPathStyle" TargetType="{x:Type Path}">
        <Style.Triggers>
            <DataTrigger Binding="{Binding RelativeSource=
                {RelativeSource Mode=FindAncestor, AncestorType={x:Type Button}}, Path=IsMouseOver}" Value="True">
                <Setter Property="Fill" Value="Yellow"/>
                <Setter Property="Stroke" Value="Blue"/>
            </DataTrigger>
            <DataTrigger Binding="{Binding RelativeSource=
                {RelativeSource Mode=FindAncestor, AncestorType={x:Type Button}}, Path=IsPressed}" Value="True">
                <Setter Property="Fill" Value="Red"/>
                <Setter Property="Stroke" Value="Black"/>
            </DataTrigger>
        </Style.Triggers>
        <Setter Property="Fill" Value="Green"/>
        <Setter Property="Stroke" Value="Red"/>
    </Style>

接下来，图标本身：

<Viewbox Stretch="Fill" x:Shared="False" x:Key="MyIcon">
        <Path StrokeThickness="6" Data="M160.26077,0.5 L196.5,36.739223 232.73923,0.5 251.12399,18.884777 214.88478,55.124001 251.12399,91.363222 232.73923,109.748 196.5,73.508779 160.26077,109.748 141.87601,91.363222 178.11522,55.124001 141.87601,18.884777 z" Stretch="Fill"/>
    </Viewbox>

然后，模板：

<Style x:Key="ContentButton" TargetType="{x:Type Button}">
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type Button}">
                    <ControlTemplate.Resources>
                        <Style TargetType="{x:Type Path}" BasedOn="{StaticResource ContentButtonPathStyle}"/>
                    </ControlTemplate.Resources>
                    <Grid  Background="Transparent"><ContentPresenter /></Grid>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

最后，让我们放置几个使用模板和样式的按钮：

<Grid>
    <Button Style="{DynamicResource ContentButton}" HorizontalAlignment="Left" Width="128" Height="128" VerticalAlignment="Top" Margin="85.5,87,0,0">
        <ContentPresenter Content="{DynamicResource MyIcon}" d:IsLocked="True"/>
    </Button>
    <Button Style="{DynamicResource ContentButton}" Height="64" VerticalAlignment="Top" Margin="0,87,204.5,0" HorizontalAlignment="Right" Width="64">
        <ContentPresenter Content="{DynamicResource MyIcon}" d:IsLocked="True"/>
    </Button>
    <Button Style="{DynamicResource ContentButton}" Height="96" VerticalAlignment="Bottom" Margin="234,0,0,66.5" HorizontalAlignment="Left" Width="96">
        <ContentPresenter Content="{DynamicResource MyIcon}" d:IsLocked="True"/>
    </Button>
    <Button Style="{DynamicResource ContentButton}" Height="32" VerticalAlignment="Bottom" Margin="0,0,138.5,130.5" HorizontalAlignment="Right" Width="32">
        <ContentPresenter Content="{DynamicResource MyIcon}" d:IsLocked="True"/>
    </Button>
</Grid>

Answer 1

问题不在于“基于”，你可以定义整个样式而不是使用baseon，它仍然不起作用。你只需要在ControlTemplate资源中移动你的阶梯，它肯定会起作用

        <Style x:Key="ContentButton" TargetType="{x:Type Button}">
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type Button}">
                        <ControlTemplate.Resources>
                            <Style TargetType="{x:Type Path}" BasedOn="{StaticResource ContentButtonPathStyle}"/>
                        </ControlTemplate.Resources>
                        <ContentPresenter x:Name="contentPresenter" Content="{TemplateBinding Content}">
                        </ContentPresenter>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>

说实话，我不知道为什么它在ContentPresenter资源中不起作用：）

修改

如果要根据按钮鼠标悬停更改路径样式，则需要将ismouseover属性绑定到按钮1并在路径集合中移动样式，请参阅下面的

<Style x:Key="ContentButtonPathStyle" TargetType="{x:Type Path}"> <Style.Triggers> <DataTrigger Binding="{Binding RelativeSource= {RelativeSource Mode=FindAncestor, AncestorType={x:Type Button}}, Path=IsMouseOver}" Value="True"> <Setter Property="Fill" Value="#FF00FF10"/> <Setter Property="Stroke" Value="Red"/> <Setter Property="StrokeThickness" Value="6"/> </DataTrigger> </Style.Triggers> <Setter Property="Stroke" Value="Red"/> <Setter Property="Fill"> <Setter.Value> <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"> <GradientStop Color="#FFB4B3E7" Offset="0"/> <GradientStop Color="#FF0800FF" Offset="1"/> </LinearGradientBrush> </Setter.Value> </Setter> </Style> <Style x:Key="ContentButton" TargetType="{x:Type Button}"> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type Button}"> <ContentPresenter x:Name="contentPresenter" /> </ControlTemplate> </Setter.Value> </Setter> </Style> <Viewbox x:Key="MyIcon"> <Grid Background="Transparent"> <Grid.Resources> <Style TargetType="{x:Type Path}" BasedOn="{StaticResource ContentButtonPathStyle}"/> </Grid.Resources> <Path Data="M78,296 L37.5,306.5 45.5,354.5 123.5,343.5 z" /> </Grid> </Viewbox>

而且只是为了让你知道，将一个风格基于另一个并且不添加任何内容是非常没用的，你可以使用：

<Path Style="{StaticResource ContentButtonPathStyle}" Data="...." />

希望这有帮助

在ContentPresenter中将样式应用于Path（基于OnOn不工作！）

1 个答案: