wpf 覆盖切换按钮样式
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原文地址: http://stackoverflow.com/questions/12416821/
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Override ToggleButton Style
提问by Jayson Ragasa
I have a ToggleButton in my window and styled in my ResourceDictionary. The reason why it's in the ResourceDictionary is because I have several or more ToggleButton soon which has to have the same look.
我的窗口中有一个 ToggleButton，并在我的 ResourceDictionary 中设置了样式。它在 ResourceDictionary 中的原因是因为我很快就会有几个或更多 ToggleButton，它们必须具有相同的外观。
<Style x:Key="Standardbutton" TargetType="{x:Type ToggleButton}">
<Setter Property="FontSize" Value="18" />
<Setter Property="Foreground" Value="White" />
<Setter Property="Background">
<Setter.Value>
<ImageBrush ImageSource="Resources/Standard_Button_Normal.png" />
</Setter.Value>
</Setter>
<Setter Property="Height" Value="56" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ToggleButton">
<Border Name="border" BorderThickness="0" Padding="0,0" BorderBrush="DarkGray" CornerRadius="0" Background="{TemplateBinding Background}">
<ContentPresenter HorizontalAlignment="Left" VerticalAlignment="Center" Name="content" Margin="15,0,0,0"/>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsChecked" Value="True">
<Setter Property="Background">
<Setter.Value>
<ImageBrush ImageSource="Resources/Standard_Button_Pressed.png" />
</Setter.Value>
</Setter>
<Setter Property="Foreground">
<Setter.Value>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#FFF9CE7B" Offset="0"/>
<GradientStop Color="#FFE88C41" Offset="1"/>
</LinearGradientBrush>
</Setter.Value>
</Setter>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
Now this ToggleButton style has a default background and also when "IsChecked" is true, it will have different background (as you can see on my XAML code above).
现在此 ToggleButton 样式具有默认背景，并且当“IsChecked”为 true 时，它将具有不同的背景（如您在上面的 XAML 代码中所见）。
Now these toggle buttons has to have icon + text combined, like what I did here (sorry for my lame XAML code)
现在这些切换按钮必须组合图标 + 文本，就像我在这里所做的一样（抱歉我的 XAML 代码很烂）
<ToggleButton Style="{DynamicResource Standardbutton}" Margin="0,0,0,4">
<StackPanel Orientation="Horizontal">
<Image Source="Resources/scan_26x26.png" />
<TextBlock Text="Scan"/>
</StackPanel>
</ToggleButton>
The question is, how can I have a different icon when the ToggleButton is checked (IsChecked=True)?
问题是，检查触刀Button是否被检查时如何具有不同的图标（ischecked = true）？
Here are some images that might help you to understand the question
以下是一些可能有助于您理解问题的图片
Normal ToggleButton Style
IsChecked=True Style
My design goal is to have a different icon when IsChecked=True
普通 ToggleButton 样式
IsChecked=True 样式
我的设计目标是当 IsChecked=True 时有一个不同的图标
回答by McGarnagle
Add both images to the control template, and bind their Visibilityproperty to the IsCheckedproperty (use an IValueConverterto convert from true/false to the appropriate Visibilityenum value).
将两个图像添加到控件模板，并将它们的Visibility属性绑定到IsChecked属性（使用 anIValueConverter将 true/false 转换为适当的Visibility枚举值）。
<ToggleButton Style="{DynamicResource Standardbutton}" Margin="0,0,0,4">
<StackPanel Orientation="Horizontal">
<Image Source="Resources/scan_26x26.png"
Visibility="{Binding
RelativeSource={RelativeSource AncestorType=ToggleButton},
Path=IsChecked,
Converter={StaticResource BoolToVisibleConverter}}" />
<Image Source="Resources/anotherimage.png"
Visibility="{Binding
RelativeSource={RelativeSource AncestorType=ToggleButton},
Path=IsChecked,
Converter={StaticResource BoolToCollapsedConverter}}" />
<TextBlock Text="Scan"/>
</StackPanel>
</ToggleButton>
I used two converters BoolToVisibleConverterand BoolToCollapsedConverter, but you could also use a ConverterParameterto accomplish the same thing.
我使用了两个转换器BoolToVisibleConverter和BoolToCollapsedConverter，但您也可以使用 aConverterParameter来完成同样的事情。
