在鼠标悬停时更改标签前景，但标签位于按钮内容内部
本文关键字：标签 于按钮 按钮 内部 悬停 鼠标 | 更新日期: 2023-09-27 18:04:44
我是WPF和XAML的新手，但正如我所读到的，这仍然是一件棘手的事情。我想在鼠标悬停时更改的是Label的前景色，但标签在按钮内容的内部。一切都应该按风格来做，没有C#。
<Button Name="Home_Button" Height="50" VerticalAlignment="Top" Click="Home_Click" Background="Gray" Foreground="{x:Null}" BorderBrush="{x:Null}" BorderThickness="0">
<DockPanel>
<Image Source="Images/icons/home.png" HorizontalAlignment="Left" Margin="-90,0,0,0" />
<Label VerticalAlignment="Center" HorizontalAlignment="Right" Margin="0,0,-90,0" Foreground="LightGray" FontSize="12">Home</Label>
</DockPanel>
</Button>
我的样式设置如下：
<Style TargetType="{x:Type Button}" x:Key="MetroButton">
<Setter Property="MinHeight" Value="25" />
<Setter Property="FontWeight" Value="Bold" />
<Setter Property="FontSize" Value="10" />
<Setter Property="FontFamily" Value="{DynamicResource DefaultFont}" />
<Setter Property="Background" Value="{DynamicResource GrayBrush7}" />
<Setter Property="BorderBrush" Value="{DynamicResource TextBoxBorderBrush}" />
<Setter Property="Foreground" Value="{DynamicResource TextBrush}" />
<Setter Property="Padding" Value="5,6" />
<Setter Property="BorderThickness" Value="1" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<Grid>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal" />
<VisualState x:Name="MouseOver">
<Storyboard>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Opacity)" Storyboard.TargetName="MouseOverBorder">
<EasingDoubleKeyFrame KeyTime="0" Value="1" />
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Pressed">
<Storyboard>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Opacity)" Storyboard.TargetName="PressedBorder">
<EasingDoubleKeyFrame KeyTime="0" Value="1" />
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Disabled">
<Storyboard>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="Opacity" Storyboard.TargetName="DisabledVisualElement">
<SplineDoubleKeyFrame KeyTime="0" Value="0.7" />
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Opacity)" Storyboard.TargetName="contentPresenter">
<EasingDoubleKeyFrame KeyTime="0" Value="0.3" />
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="FocusStates">
<VisualState x:Name="Focused">
<Storyboard>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Opacity)" Storyboard.TargetName="ActiveContent">
<EasingDoubleKeyFrame KeyTime="0" Value="1" />
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Opacity)" Storyboard.TargetName="ActiveContent">
<EasingDoubleKeyFrame KeyTime="0" Value="1" />
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Unfocused" />
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Border x:Name="Background"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}"
Background="{TemplateBinding Background}" />
<Rectangle x:Name="DisabledVisualElement"
Fill="{DynamicResource ControlsDisabledBrush}"
IsHitTestVisible="false"
Opacity="0"
RadiusY="3"
RadiusX="3" />
<Border x:Name="MouseOverBorder"
Background="{DynamicResource GrayBrush8}"
BorderThickness="{TemplateBinding BorderThickness}"
Opacity="0" />
<Border x:Name="ActiveContent"
Background="LightGray"
Opacity="0"
/>
<Border x:Name="PressedBorder"
Background="{DynamicResource GrayBrush5}"
BorderThickness="{TemplateBinding BorderThickness}"
Opacity="0" />
<Rectangle x:Name="FocusRectangle"
Stroke="{DynamicResource TextBoxMouseOverInnerBorderBrush}"
RadiusY="4"
RadiusX="4"
Margin="-1"
Opacity="0" />
<Rectangle x:Name="FocusInnerRectangle"
StrokeThickness="{TemplateBinding BorderThickness}"
Stroke="{DynamicResource TextBoxMouseOverBorderBrush}"
RadiusX="3"
RadiusY="3"
Opacity="0" />
<ContentPresenter x:Name="contentPresenter"
RecognizesAccessKey="True"
ContentTemplate="{TemplateBinding ContentTemplate}"
Content="{TemplateBinding Content, Converter={StaticResource ToUpperConverter}}"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
Margin="{TemplateBinding Padding}"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}" />
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
现在我想在Button内部的Label上更改MouseOver上的Foreground.Color。现在样式设置仅更改MouseOver上Button的Background。
在按钮样式的style.Resources中放入Label的子样式，这是一个精简的示例，但应该解释我要说的内容。
<Window x:Class="WpfApplication1.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525">
<Window.Resources>
<Style TargetType="Button">
<Style.Resources>
<Style TargetType="Label">
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Foreground" Value="Green"/>
</Trigger>
</Style.Triggers>
</Style>
</Style.Resources>
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" Value="Blue"/>
</Trigger>
</Style.Triggers>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<Grid Background="Gray">
<Grid.RowDefinitions>
<RowDefinition />
<RowDefinition/>
</Grid.RowDefinitions>
<!-- This represents your image/-->
<Grid Grid.Row="0" Background="{TemplateBinding Background}"/>
<Label FontSize="20" Grid.Row="1" Content="{TemplateBinding Content}"/>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Window.Resources>
<Grid>
<Button Margin="172,122,131,79" Foreground="Green">
test
</Button>
</Grid>
</Window>
标签样式不会应用于按钮之外的任何东西，如果您将鼠标悬停在按钮区域的任何部分，它会将上半部分变为蓝色，但只有当鼠标悬停在下半部分(被标签覆盖(时，它才会将文本变为绿色
试试这个。
<Button Height="36" Margin="286,274,0,0" Width="74" MouseEnter="Button_MouseEnter_1">
<Label x:Name="mylbl" Content="Test" MouseEnter="mylbl_MouseEnter"/>
</Button>
代码背后：
private void mylbl_MouseEnter(object sender, MouseEventArgs e)
{
mylbl.Background = new SolidColorBrush(Colors.Red);
}