WPF ListBox图像选择了传奇继续

Question

好吧,在我的ListBox滚动图像w /文本等等saga继续.当我单击其中一个项目以选择它时,它会运行一个过程来打开Web浏览器并转到特定的URL.我现在遇到的问题是,当WPF应用程序失去焦点,并且Web浏览器打开时,在列表框内单击的项目将变为白色.这是整个ListBox XAML.我已将所选项目设置为透明,这是否与WPF应用程序失去焦点有关？

有什么我可以添加运行该过程的代码来打开Web浏览器以将焦点设置回WPF应用程序？

谢谢.

   <ListBox ItemsSource="{Binding Source={StaticResource WPFApparelCollection}}" Margin="61,-8,68,-18" ScrollViewer.VerticalScrollBarVisibility="Hidden" ScrollViewer.HorizontalScrollBarVisibility="Hidden" SelectionMode="Single" x:Name="list1" MouseLeave="List1_MouseLeave" MouseMove="List1_MouseMove" Style="{DynamicResource ListBoxStyle1}" Background="Transparent" BorderThickness="0">
        <ListBox.ItemContainerStyle>
            <Style TargetType="{x:Type ListBoxItem}">
                <Setter Property="Background" Value="Transparent" />
                <Setter Property="HorizontalContentAlignment" Value="{Binding Path=HorizontalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}" />
                <Setter Property="VerticalContentAlignment" Value="{Binding Path=VerticalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}" />
                <Setter Property="Padding" Value="20,10,20,10" />
                <Setter Property="Template">
                    <Setter.Value>
                        <ControlTemplate TargetType="{x:Type ListBoxItem}">
                            <Border x:Name="Bd" SnapsToDevicePixels="true" Background="Transparent" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Padding="{TemplateBinding Padding}">
                                <ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />
                            </Border>
                            <ControlTemplate.Triggers>
                                <Trigger Property="IsSelected" Value="true">
                                    <Setter Property="Background" TargetName="Bd" Value="Transparent" />
                                    <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.HighlightTextBrushKey}}" />
                                </Trigger>
                                <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>
                                <Trigger Property="IsEnabled" Value="false">
                                    <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}" />
                                </Trigger>
                            </ControlTemplate.Triggers>
                        </ControlTemplate>
                    </Setter.Value>
                </Setter>
            </Style>
        </ListBox.ItemContainerStyle>
        <ListBox.ItemsPanel>
            <ItemsPanelTemplate>
                <VirtualizingStackPanel Orientation="Horizontal" IsItemsHost="True" />
            </ItemsPanelTemplate>
        </ListBox.ItemsPanel>
        <ListBox.ItemTemplate>
            <DataTemplate>
                <StackPanel Orientation="Vertical">
                    <Grid>
                        <Image Source="{Binding Image}" MouseLeave="Image_MouseLeave" MouseEnter="Image_MouseEnter" Cursor="Hand" Tag="{Binding Link}" MouseLeftButtonDown="Image_MouseLeftButtonDown"  VerticalAlignment="Top" HorizontalAlignment="Left"></Image>
                    </Grid>
                    <Label Content="{Binding Name}" Cursor="Hand" Tag="{Binding Link}" MouseLeftButtonDown="Label_MouseLeftButtonDown" VerticalAlignment="Bottom" Foreground="White" Style="{StaticResource Gotham-Medium}" FontSize="8pt" HorizontalAlignment="Center" />
                </StackPanel>
            </DataTemplate>
        </ListBox.ItemTemplate>
    </ListBox>

Answer 1

我在ListBox中使用选择颜色时发现的一个技巧是使用系统画笔而不是对抗它们.

当一个ListBox被聚焦并且选择了一个项目时,该项目的背景是SystemColors.HighlightBrush.但是,当ListBox失去焦点时,所选项目的背景将变为SystemColors.ControlBrush.

知道了这一点,您可以覆盖该ListBox的系统画笔,以便使用您想要的颜色绘制其中的项目.

<ListBox>
    <ListBox.Resources>
        <!-- override the system brushes so that selected items are transparent
             whether the ListBox has focus or not -->
        <SolidColorBrush
            x:Key="{x:Static SystemColors.HighlightBrushKey}" 
            Color="Transparent" />
        <SolidColorBrush
            x:Key="{x:Static SystemColors.ControlBrushKey}" 
            Color="Transparent" />
        <SolidColorBrush
            x:Key="{x:Static SystemColors.HighlightTextBrushKey}" 
            Color="Black" />
    </ListBox.Resources>
    <!-- ... your items here ... -->
</ListBox>