wpf 选中时更改切换按钮的背景颜色
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changing background color of togglebutton when checked
提问by TrustyCoder
I am trying the distinguish the state of the toggle button when clicked. I have the snippet below
我正在尝试区分单击时切换按钮的状态。我有下面的片段
<Window x:Class="WpfApplication2.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 x:Key="OnOffToggleImageStyle" TargetType="ToggleButton">
<Style.Triggers>
<Trigger Property="IsChecked" Value="True">
<Setter Property="Background" Value="DimGray"/>
</Trigger>
</Style.Triggers>
</Style>
</Window.Resources>
<Grid>
<ToggleButton Height="60" Content="Text" Style="{StaticResource OnOffToggleImageStyle}">
</ToggleButton>
</Grid>
</Window>
However this does not work when IsChecked value is set to "True" in the style. When set to false it works.
但是，当样式中的 IsChecked 值设置为“True”时，这不起作用。当设置为 false 时它起作用。
I wonder why. Any answers!
我想知道为什么。任何答案！
采纳答案by Ibbster
When running your code sample, it appears the style is conflicting with the 'chrome' of the ToggleButton(i.e. the original style of the button).
运行您的代码示例时，样式似乎与ToggleButton(即按钮的原始样式)的 'chrome' 冲突。
It would probably be better in this situation to override the template of the ToggleButtonto behave in the manner you desire. An ugly example can be found below:
在这种情况下，覆盖 的模板ToggleButton以按照您希望的方式行事可能会更好。一个丑陋的例子可以在下面找到：
<Style x:Key="myToggleButton" TargetType="{x:Type ToggleButton}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate>
<Border x:Name="outer"
BorderBrush="White"
BorderThickness="2"
Opacity=".9"
Background="Transparent">
<Border x:Name="inner"
Margin="8"
BorderThickness="0"
Background="{
Binding Background,
RelativeSource={RelativeSource TemplatedParent}}">
<Grid x:Name="container">
<Grid.RowDefinitions>
<RowDefinition Height="2*"/>
<RowDefinition/>
</Grid.RowDefinitions>
<TextBlock x:Name="display"
Grid.Row="1"
Text="{Binding Content, RelativeSource={
RelativeSource TemplatedParent}}"
Foreground="White"
FontSize="11"
FontFamily="Segoe UI"
FontStyle="Normal"
FontWeight="Normal"
Margin="8,0,0,4"
HorizontalAlignment="Left"
VerticalAlignment="Bottom"/>
</Grid>
</Border>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="ToggleButton.IsChecked" Value="True">
<Setter TargetName="outer" Property="Background" Value="LightBlue"/>
<Setter TargetName="outer" Property="BorderBrush" Value="Transparent"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
