设置背景颜色或WPF(4.0)ListBox - Windows 8

Question

我试图将所选ListBoxItem的背景颜色设置为白色而不是系统颜色.我已经阅读了我在这里可以找到的内容并且已经跟随或者相信已经遵循了那里的建议(更改所选ListBox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文本颜色,更改选中和不专心的列表框样式不会变灰,以及其他).

所有似乎都通过将HighlightBrush和ControlBrush设置为所选项目的透明来解决问题.我有以下XAML并且它正确设置了字体颜色,但无论画笔设置如何,backgroound都是默认的透明蓝色.我仍然是一个WPF菜鸟,所以我必须在这里遗漏一些简单的东西.

<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>

我会感谢任何朝着正确方向的推动.

编辑:

在阅读了第一个对他们有用的答案后,稍微改了一下,我拿了我在Windows 8机器上开发的应用程序并在Windows 7 VM中执行它,它按预期工作.有关需要改变哪些内容以使其在Windows 8计算机和Windows 7上运行的任何想法？

Answer 1

这些帖子已经过时了Windows-8.

在Windows-8中由于某种原因,微软不希望人们Style如此容易地编辑他们的默认或者Brush过度编辑.

ListBoxItem默认Style来自VS有这个选择触发器:

<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刷子,我们可以轻松覆盖但是静态颜色.因此,要修改它,您将需要派生模板并在那里修改触发器.至White

这是VS2012 Windows-8给出的完整风格 ListBoxItem

<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>

你应该排序你的问题.

Answer 2

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>