设置背景颜色或WPF(4.0)列表框-Windows 8
本文关键字：列表 -Windows 颜色 背景 WPF 设置 | 更新日期: 2023-09-27 18:16:09
我正试图将所选ListBoxItem的背景颜色设置为白色，而不是系统颜色。我已经在SO上阅读了我在这里可以找到的内容，并遵循或相信已经遵循了那里的建议(更改所选列表框项目的背景颜色，WPF如何在列表框失去焦点时更改列表框所选项目的文本颜色，将所选和未聚焦的列表框样式更改为不灰显，以及其他(。
所有这些似乎都通过将所选项目的HighlightBrush和ControlBrush设置为透明来解决问题。我有下面的XAML，它正确地设置了字体颜色，但无论笔刷设置如何，background都是默认的透明蓝色。我还是一个WPF迷，所以我一定错过了一些简单的东西。
<ListBox Width="Auto" Height="Auto" Grid.Column="0" BorderThickness="0" Background="#FFF3F3F3" xmlns:sys="clr-namespace:System;assembly=mscorlib">
<ListBox.ItemsSource>
<x:Array Type="{x:Type sys:String}">
<sys:String>String 1</sys:String>
<sys:String>String 2</sys:String>
<sys:String>String 3</sys:String>
<sys:String>String 4</sys:String>
</x:Array>
</ListBox.ItemsSource>
<ListBox.ItemContainerStyle>
<Style TargetType="ListBoxItem" BasedOn="{StaticResource {x:Type ListBoxItem}}">
<Style.Resources>
<SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}" Color="Transparent" />
<SolidColorBrush x:Key="{x:Static SystemColors.ControlBrushKey}" Color="Transparent" />
</Style.Resources>
<Setter Property="HorizontalContentAlignment" Value="Stretch" />
<Setter Property="FontSize" Value="16"/>
<Setter Property="Foreground" Value="#999999"/>
<Style.Triggers>
<Trigger Property="IsSelected" Value="True" >
<Setter Property="Background" Value="White" />
<Setter Property="Foreground" Value="Black" />
</Trigger>
</Style.Triggers>
</Style>
</ListBox.ItemContainerStyle>
<ListBox.ItemTemplate>
<DataTemplate>
<TextBlock Text="{Binding}" HorizontalAlignment="Right" Margin="0,0,8,0" Background="Transparent"/>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
如果能朝着正确的方向推进，我将不胜感激。
编辑：
在阅读了第一个答案后，我认为它只做了一点改动就对他们有效，于是我采用了我在Windows 8机器上开发的应用程序，并在Windows 7虚拟机中执行了它，它如预期的那样工作。有什么想法需要改变才能在Windows 8和Windows 7上运行吗？
这些帖子对于Windows-8来说已经过时了。
在Windows-8中，出于某种原因，微软不希望人们如此容易地编辑他们的默认Style或Brush。
VS中的ListBoxItem默认Style具有以下选择触发器：
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="Selector.IsSelectionActive"
Value="False" />
<Condition Property="IsSelected"
Value="True" />
</MultiTrigger.Conditions>
<Setter TargetName="Bd"
Property="Background"
Value="#3DDADADA" />
<Setter TargetName="Bd"
Property="BorderBrush"
Value="#FFDADADA" />
</MultiTrigger>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="Selector.IsSelectionActive"
Value="True" />
<Condition Property="IsSelected"
Value="True" />
</MultiTrigger.Conditions>
<Setter TargetName="Bd"
Property="Background"
Value="#3D26A0DA" />
<Setter TargetName="Bd"
Property="BorderBrush"
Value="#FF26A0DA" />
</MultiTrigger>
"选择"状态的触发器不再应用我们可以轻松驾驭的笔刷，而是静态颜色。因此，要修改它，您需要派生模板并在那里修改触发器。至White
这是VS2012 Windows-8为ListBoxItem 提供的完整样式
<Style x:Key="ListBoxItemStyle1"
TargetType="{x:Type ListBoxItem}">
<Setter Property="SnapsToDevicePixels"
Value="True" />
<Setter Property="Padding"
Value="4,1" />
<Setter Property="HorizontalContentAlignment"
Value="{Binding HorizontalContentAlignment,
RelativeSource={RelativeSource FindAncestor,
AncestorLevel=1,
AncestorType={x:Type ItemsControl}}}" />
<Setter Property="VerticalContentAlignment"
Value="{Binding VerticalContentAlignment,
RelativeSource={RelativeSource FindAncestor,
AncestorLevel=1,
AncestorType={x:Type ItemsControl}}}" />
<Setter Property="Background"
Value="Transparent" />
<Setter Property="BorderBrush"
Value="Transparent" />
<Setter Property="BorderThickness"
Value="1" />
<Setter Property="FocusVisualStyle">
<Setter.Value>
<Style>
<Setter Property="Control.Template">
<Setter.Value>
<ControlTemplate>
<Rectangle Margin="2"
SnapsToDevicePixels="True"
Stroke="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"
StrokeDashArray="1 2"
StrokeThickness="1" />
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Setter.Value>
</Setter>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ListBoxItem}">
<Border x:Name="Bd"
Background="{TemplateBinding Background}"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}"
Padding="{TemplateBinding Padding}"
SnapsToDevicePixels="True">
<ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
Content="{TemplateBinding Content}"
ContentStringFormat="{TemplateBinding ContentStringFormat}"
ContentTemplate="{TemplateBinding ContentTemplate}"
SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />
</Border>
<ControlTemplate.Triggers>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="IsMouseOver"
Value="True" />
</MultiTrigger.Conditions>
<Setter TargetName="Bd"
Property="Background"
Value="#1F26A0DA" />
<Setter TargetName="Bd"
Property="BorderBrush"
Value="#A826A0DA" />
</MultiTrigger>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="Selector.IsSelectionActive"
Value="False" />
<Condition Property="IsSelected"
Value="True" />
</MultiTrigger.Conditions>
<Setter TargetName="Bd"
Property="Background"
Value="#3DDADADA" />
<Setter TargetName="Bd"
Property="BorderBrush"
Value="#FFDADADA" />
</MultiTrigger>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="Selector.IsSelectionActive"
Value="True" />
<Condition Property="IsSelected"
Value="True" />
</MultiTrigger.Conditions>
<Setter TargetName="Bd"
Property="Background"
Value="#3D26A0DA" />
<Setter TargetName="Bd"
Property="BorderBrush"
Value="#FF26A0DA" />
</MultiTrigger>
<Trigger Property="IsEnabled"
Value="False">
<Setter TargetName="Bd"
Property="TextElement.Foreground"
Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
如果您将这些触发器修改为：
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="Selector.IsSelectionActive"
Value="False" />
<Condition Property="IsSelected"
Value="True" />
</MultiTrigger.Conditions>
<Setter TargetName="Bd"
Property="Background"
Value="White" />
<Setter TargetName="Bd"
Property="BorderBrush"
Value="White" />
</MultiTrigger>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="Selector.IsSelectionActive"
Value="True" />
<Condition Property="IsSelected"
Value="True" />
</MultiTrigger.Conditions>
<Setter TargetName="Bd"
Property="Background"
Value="White" />
<Setter TargetName="Bd"
Property="BorderBrush"
Value="White" />
</MultiTrigger>
你应该解决你的问题。
将以下触发器添加到我的Item DataTemplate，适用于Windows 10:
<DataTemplate x:Key="MyItemTemplate">
<Border Name="Border" Background="Transparent" BorderBrush="LightGray" BorderThickness="0,1,0,0" Padding="0">
<TextBlock Text="{Binding Text}" HorizontalAlignment="Left" FontWeight="Medium" />
</Border>
<DataTemplate.Triggers>
<DataTrigger Binding="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type ListBoxItem}}, Path=IsSelected}" Value="True">
<Setter TargetName="Border" Property="Background" Value="SkyBlue"/>
</DataTrigger>
</DataTemplate.Triggers>
</DataTemplate>
所以您只想将所选项目的背景设为白色？
您的代码减去ControlBrushKey设置对我有效：
<Style.Resources>
<SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}" Color="White" />
</Style.Resources>