Question

我在Win7中用WPF编写了列表框样式所以我的风格是

<ListBox>
 <ListBox.Resources>
     <SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}" Color="#3399FF" />
     <SolidColorBrush x:Key="{x:Static SystemColors.HighlightTextBrushKey}" Color="#000000" />
     <SolidColorBrush x:Key="{x:Static SystemColors.InactiveSelectionHighlightBrushKey}" Color="#3399FF" />
     <SolidColorBrush x:Key="{x:Static SystemColors.InactiveSelectionHighlightTextBrushKey}" Color="#000000" />
 </ListBox.Resources>
</ListBox>

此代码在聚焦和散焦状态下对列表框项目进行相同的选择。当我在Windows 8下运行我的程序时，这种外观不起作用。我的代码中的错误在哪里？

Answer 1

Windows-8中的

ListBoxItem似乎有

<MultiTrigger>
  <MultiTrigger.Conditions>
    <Condition Property="IsSelected" Value="true"/>
    <Condition Property="Selector.IsSelectionActive" Value="false"/>
  </MultiTrigger.Conditions>
  <Setter Property="Background" TargetName="Bd" Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}"/>
  <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>
</MultiTrigger>

对于它的非活动选择在默认样式中触发，然后使用SystemColors.ControlBrushKey和SystemColors.ControlTextBrushKey，因此您可能希望在资源中覆盖它们，

可能是这样的：

<ListBox>
 <ListBox.Resources>
     <SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}" Color="#3399FF" />
     <SolidColorBrush x:Key="{x:Static SystemColors.HighlightTextBrushKey}" Color="#000000" />
     <SolidColorBrush x:Key="{x:Static SystemColors.ControlBrushKey}" Color="#3399FF" />
     <SolidColorBrush x:Key="{x:Static SystemColors.ControlTextBrushKey}" Color="#000000" />
     <SolidColorBrush x:Key="{x:Static SystemColors.InactiveSelectionHighlightBrushKey}" Color="#3399FF" />
     <SolidColorBrush x:Key="{x:Static SystemColors.InactiveSelectionHighlightTextBrushKey}" Color="#000000" />
 </ListBox.Resources>
</ListBox>

或者只是自己创建一个Style（基于默认模板）并直接在这个新Style上设置颜色，这样就可以保证适用于任何版本的操作系统而且你不会不得不继续回溯并检查默认情况下是否有变化。

Answer 2

尝试使用ItemTemplate：

 <ListBox HorizontalContentAlignment="Stretch">
                <ListBox.ItemTemplate>
                    <DataTemplate>
                        <Label  Margin="-5, -2,-5,-2" Content="{Binding Item}">
                            <Label.Style>
                                <Style TargetType="Label">
                                    <Style.Triggers>
                                        <MultiDataTrigger>
                                            <MultiDataTrigger.Conditions>
                                                <Condition Binding="{Binding RelativeSource={RelativeSource Mode=FindAncestor,AncestorType={x:Type ListBox}},Path=IsFocused}" Value="False"/>
                                                <Condition Binding="{Binding RelativeSource={RelativeSource Mode=FindAncestor,AncestorType={x:Type ListBoxItem}},Path=IsSelected}" Value="True"/>
                                            </MultiDataTrigger.Conditions>
                                            <Setter Property="Background" Value="CornflowerBlue"/>
                                        </MultiDataTrigger>
                                        <DataTrigger Binding="{Binding RelativeSource={RelativeSource Mode=FindAncestor,AncestorType={x:Type ListBoxItem}},Path=IsSelected}" Value="True">
                                            <Setter Property="Foreground" Value="White"/>
                                        </DataTrigger>
                                        <DataTrigger Binding="{Binding RelativeSource={RelativeSource Mode=FindAncestor,AncestorType={x:Type ListBoxItem}},Path=IsSelected}" Value="False">
                                            <Setter Property="Foreground" Value="Black"/>
                                        </DataTrigger>
                                    </Style.Triggers>
                                </Style>
                            </Label.Style>
                        </Label>
                    </DataTemplate>
                </ListBox.ItemTemplate>
            </ListBox>

windows 8列表框选择颜色

2 个答案: