鼠标悬停时更改ListViewItem背景颜色

Question

我需要一些帮助.我无法理解为什么我发现的解决方案都不适用于我的案例.让我们考虑一下这些项目的Listview:

<ListView.Items>
    <ListViewItem>
          <TextBlock xml:space="preserve">  1 <Bold>I'm bold</Bold>   </TextBlock>
    </ListViewItem>
    <ListViewItem>
          <TextBlock  xml:space="preserve"> 2 Im not </TextBlock>
    </ListViewItem>
</ListView.Items>

最初在悬停每一行时,我看到TextBlock的突出显示为默认的浅蓝色.它只用文字强调了该区域:

我不希望突出显示我想要整行中的一个,我想决定颜色.我还想要选择整行的亮点:

我一直在玩Styles,Triggers或ItemContainerStyle.我意识到我必须考虑Textbox的背景,以及带有文本的区域的ListViewItem.整行的背景似乎是ListView.ItemContainerStyle的业务.

在TextBox中添加样式的结果:

    <Style x:Key="TextBlockStyle" TargetType="{x:Type TextBlock}">
        <Style.Triggers>
            <Trigger Property="IsMouseOver" Value="True">
               <Setter Property="Foreground" Value="Black" />
                <Setter Property="Background" Value="White"/> 
            </Trigger>
        </Style.Triggers>
    </Style>

<ListView Grid.Column="1" Margin="0" HorizontalContentAlignment="Stretch" BorderThickness="0" >
        <ListView.Resources>
                <Style BasedOn="{StaticResource TextBlockStyle}" TargetType="{x:Type TextBlock}" />   
          </ListView.Resources>

是:

然后我添加另一个样式,试图摆脱TextBox下的ListView背景:

    <Style x:Key="ListViewItemStyle" TargetType="{x:Type ListViewItem}">
                    <Style.Triggers>
                        <Trigger Property="IsMouseOver" Value="True">
                            <Setter Property="Background" Value="Gold" />
                        </Trigger>
                    </Style.Triggers>
     </Style>

 <ListView Grid.Column="1" Margin="0" HorizontalContentAlignment="Stretch" BorderThickness="0" >
        <ListView.Resources>
                <Style BasedOn="{StaticResource TextBlockStyle}" TargetType="{x:Type TextBlock}" />
                 <Style BasedOn="{StaticResource ListViewItemStyle}" TargetType="{x:Type ListViewItem}" />    
          </ListView.Resources>

但这根本没有效果.

并尝试使用此突出显示整行不起作用:

<ItemsControl.ItemContainerStyle>
    <Style>
        <Style.Triggers>
               <Trigger Property="Control.IsMouseOver" Value="True">
                    <Setter Property="Control.Background" Value="Gold" />
                        </Trigger>
         </Style.Triggers>
    </Style>
</ItemsControl.ItemContainerStyle>

几个小时尝试了几个其他的建议.这一个: 在WPF中的ListView上移除鼠标效果避免了悬停时文本上的突出显示,包括TextBox和ListViewItem,但我不知道如何更改整行的背景.有人可以提供一个我正在尝试做的例子吗？

Answer 1

查看和更改给定元素的所有样式选项的最简单方法是导出控件的默认模板.

因此,在控件的"设计视图"中打开Visual Studio或"混合"和"右键单击".将鼠标悬停在"编辑模板" - >并选择"编辑副本..." 输出:

        <SolidColorBrush x:Key="Item.MouseOver.Background" Color="Gold"/>
        <SolidColorBrush x:Key="Item.MouseOver.Border" Color="#a826A0Da"/>
        <SolidColorBrush x:Key="Item.SelectedInactive.Background" Color="#3DDADADA"/>
        <SolidColorBrush x:Key="Item.SelectedInactive.Border" Color="#FFDADADA"/>
        <SolidColorBrush x:Key="Item.SelectedActive.Background" Color="#3D26A0DA"/>
        <SolidColorBrush x:Key="Item.SelectedActive.Border" Color="#FF26A0DA"/>

        <Style x:Key="ListViewContainerStyle" TargetType="{x:Type ListViewItem}">
            <Setter Property="SnapsToDevicePixels" Value="True"/>
            <Setter Property="Padding" Value="4,1"/>
            <Setter Property="HorizontalContentAlignment" Value="{Binding HorizontalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"/>
            <Setter Property="VerticalContentAlignment" Value="{Binding VerticalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"/>
            <Setter Property="Background" Value="Transparent"/>
            <Setter Property="BorderBrush" Value="Transparent"/>
            <Setter Property="BorderThickness" Value="1"/>
            <Setter Property="FocusVisualStyle" Value="{StaticResource FocusVisual}"/>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type ListViewItem}">
                        <Border x:Name="Bd" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Padding="{TemplateBinding Padding}" SnapsToDevicePixels="true">
                            <ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
                        </Border>
                        <ControlTemplate.Triggers>
                            <MultiTrigger>
                                <MultiTrigger.Conditions>
                                    <Condition Property="IsMouseOver" Value="True"/>
                                </MultiTrigger.Conditions>
                                <Setter Property="Background" TargetName="Bd" Value="{StaticResource Item.MouseOver.Background}"/>
                                <Setter Property="BorderBrush" TargetName="Bd" Value="{StaticResource Item.MouseOver.Border}"/>
                            </MultiTrigger>
                            <MultiTrigger>
                                <MultiTrigger.Conditions>
                                    <Condition Property="Selector.IsSelectionActive" Value="False"/>
                                    <Condition Property="IsSelected" Value="True"/>
                                </MultiTrigger.Conditions>
                                <Setter Property="Background" TargetName="Bd" Value="{StaticResource Item.SelectedInactive.Background}"/>
                                <Setter Property="BorderBrush" TargetName="Bd" Value="{StaticResource Item.SelectedInactive.Border}"/>
                            </MultiTrigger>
                            <MultiTrigger>
                                <MultiTrigger.Conditions>
                                    <Condition Property="Selector.IsSelectionActive" Value="True"/>
                                    <Condition Property="IsSelected" Value="True"/>
                                </MultiTrigger.Conditions>
                                <Setter Property="Background" TargetName="Bd" Value="{StaticResource Item.SelectedActive.Background}"/>
                                <Setter Property="BorderBrush" TargetName="Bd" Value="{StaticResource Item.SelectedActive.Border}"/>
                            </MultiTrigger>
                            <Trigger Property="IsEnabled" Value="False">
                                <Setter Property="TextElement.Foreground" TargetName="Bd" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>
                            </Trigger>
                        </ControlTemplate.Triggers>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>

现在,您有一个很好的起点,可以自定义ItemContainerStyle.

Answer 2

试试这个:

        <ListView.ItemContainerStyle>
            <Style TargetType="{x:Type ListViewItem}">
                <Style.Triggers>
                    <Trigger Property="IsMouseOver" Value="True">
                        <Setter Property="Background" Value="Gold" />
                    </Trigger>
                </Style.Triggers>
            </Style>
        </ListView.ItemContainerStyle>