如何更改列表框中所选项的默认背景
本文关键字:选项 默认 背景 何更改 列表 | 更新日期: 2023-09-27 18:35:47
我正在使用WPF开发Windows应用商店应用程序。在主页中,我有一个覆盖所有屏幕的背景图像。我正在使用一些带有自定义ItemTemplate
和透明背景的ListBox
。到目前为止,它工作正常。
这里的事情是,当我从ListBox
中选择任何项目时,它会以紫色突出显示(我猜是默认颜色),并且 ListBox 的背景变为白色。
<ListBox x:Name="listBox1" Background="Transparent" BorderBrush="Transparent"
ItemTemplate=" {StaticResource listBox1DataTemplate}"
SelectionChanged="listBox1_SelectionChanged"
ItemContainerStyle="{StaticResource StylelistBox1}"/>
我尝试使用样式更改它并在选择项目时应用它。但是,它不起作用。
有没有人知道如何更改所选项目的默认颜色?
问候!
也许您应该根据您的要求更改列表框项的默认样式模板。
<Style TargetType="ListBoxItem">
<Setter Property="Padding" Value="3" />
<Setter Property="HorizontalContentAlignment" Value="Left" />
<Setter Property="VerticalContentAlignment" Value="Top" />
<Setter Property="Background" Value="Transparent" />
<Setter Property="BorderThickness" Value="1"/>
<Setter Property="TabNavigation" Value="Local" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ListBoxItem">
<Grid Background="{TemplateBinding Background}">
<vsm:VisualStateManager.VisualStateGroups>
<vsm:VisualStateGroup x:Name="CommonStates">
<vsm:VisualState x:Name="Normal" />
<vsm:VisualState x:Name="MouseOver">
<Storyboard>
<DoubleAnimation Storyboard.TargetName="fillColor" Storyboard.TargetProperty="Opacity" Duration="0" To=".35"/>
</Storyboard>
</vsm:VisualState>
<vsm:VisualState x:Name="Disabled">
<Storyboard>
<DoubleAnimation Storyboard.TargetName="contentPresenter" Storyboard.TargetProperty="Opacity" Duration="0" To=".55" />
</Storyboard>
</vsm:VisualState>
</vsm:VisualStateGroup>
<vsm:VisualStateGroup x:Name="SelectionStates">
<vsm:VisualState x:Name="Unselected" />
<vsm:VisualState x:Name="Selected">
<Storyboard>
<DoubleAnimation Storyboard.TargetName="fillColor2" Storyboard.TargetProperty="Opacity" Duration="0" To=".75"/>
</Storyboard>
</vsm:VisualState>
</vsm:VisualStateGroup>
<vsm:VisualStateGroup x:Name="FocusStates">
<vsm:VisualState x:Name="Focused">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="FocusVisualElement" Storyboard.TargetProperty="Visibility" Duration="0">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<Visibility>Visible</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</vsm:VisualState>
<vsm:VisualState x:Name="Unfocused"/>
</vsm:VisualStateGroup>
</vsm:VisualStateManager.VisualStateGroups>
<Rectangle x:Name="fillColor" Opacity="0" Fill="#FFBADDE9" IsHitTestVisible="False" RadiusX="1" RadiusY="1"/>
<Rectangle x:Name="fillColor2" Opacity="0" Fill="#FFBADDE9" IsHitTestVisible="False" RadiusX="1" RadiusY="1"/>
<ContentPresenter
x:Name="contentPresenter"
Content="{TemplateBinding Content}"
ContentTemplate="{TemplateBinding ContentTemplate}"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
Margin="{TemplateBinding Padding}"/>
<Rectangle x:Name="FocusVisualElement" Stroke="#FF6DBDD1" StrokeThickness="1" Visibility="Collapsed" RadiusX="1" RadiusY="1" />
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
此处的 MSDN 参考