Question

我有以下ListView和ListView.ItemTemplate：

<ListView.ItemTemplate>
    <DataTemplate>
        <StackPanelName="stackPanel" Orientation="Horizontal">
            <TextBoxName="textBoxOrg"
                Background="Transparent" BorderThickness="0" TextWrapping="Wrap" Text="{BindingOrgText}"
                IsReadOnly="True"/>
            <TextBoxName="textBoxNew"
                Background="Transparent" BorderThickness="0" TextWrapping="Wrap" Text="{BindingNewText}"
                AcceptsReturn="True"/>
        </StackPanel>
    </DataTemplate>
</ListView.ItemTemplate>

以下ListViewItemStyle

<Style TargetType="ListViewItem">
    <Setter Property="SnapsToDevicePixels" Value="True" />
        <Style.Triggers>
            <Trigger Property="IsSelected" Value="True">
                <Setter Property="Background" Value="LightGoldenrodYellow" />
            </Trigger>
        </Style.Triggers>
</Style>

我想更改所选项目的默认“蓝色”背景颜色，但在使用上述代码时，选择项目时它不会更改为“LightGoldenrodYellow”。

我应该如何修复代码以使其正常工作？

Answer 1

您需要自定义ListViewItem的ControlTemplate。否则它会覆盖（不使用）您定义的背景触发器。这是自定义的默认模板（我使用一个名为stylesnooper的有用的小工具来获取模板http://wpfwonderland.wordpress.com/2007/01/02/wpf-tools-stylesnooper/）：

            <ControlTemplate TargetType="{x:Type ListBoxItem}">
                <Border BorderThickness="{TemplateBinding Border.BorderThickness}" Padding="{TemplateBinding Control.Padding}" BorderBrush="{TemplateBinding Border.BorderBrush}" Background="{TemplateBinding Panel.Background}" Name="Bd" SnapsToDevicePixels="True">
                    <ContentPresenter Content="{TemplateBinding ContentControl.Content}" ContentTemplate="{TemplateBinding ContentControl.ContentTemplate}" ContentStringFormat="{TemplateBinding ContentControl.ContentStringFormat}" HorizontalAlignment="{TemplateBinding Control.HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding Control.VerticalContentAlignment}" SnapsToDevicePixels="{TemplateBinding UIElement.SnapsToDevicePixels}" />
                    </Border>
                <ControlTemplate.Triggers>
                    <Trigger Property="Selector.IsSelected">
                        <Setter Property="Panel.Background" TargetName="Bd">
                            <Setter.Value>
                                <DynamicResource ResourceKey="{x:Static SystemColors.HighlightBrushKey}" />
                                </Setter.Value>
                            </Setter>
                        <Setter Property="TextElement.Foreground">
                            <Setter.Value>
                                <DynamicResource ResourceKey="{x:Static SystemColors.HighlightTextBrushKey}" />
                                </Setter.Value>
                            </Setter>
                        <Trigger.Value>
                            <s:Boolean>
                                True</s:Boolean>
                            </Trigger.Value>
                        </Trigger>
                    <MultiTrigger>
                        <MultiTrigger.Conditions>
                            <Condition Property="Selector.IsSelected">
                                <Condition.Value>
                                    <s:Boolean>
                                        True</s:Boolean>
                                    </Condition.Value>
                                </Condition>
                            <Condition Property="Selector.IsSelectionActive">
                                <Condition.Value>
                                    <s:Boolean>
                                        False</s:Boolean>
                                    </Condition.Value>
                                </Condition>
                            </MultiTrigger.Conditions>
                        <Setter Property="Panel.Background" TargetName="Bd">
                            <Setter.Value>
                                <DynamicResource ResourceKey="{x:Static SystemColors.ControlBrushKey}" />
                                </Setter.Value>
                            </Setter>
                        <Setter Property="TextElement.Foreground">
                            <Setter.Value>
                                <DynamicResource ResourceKey="{x:Static SystemColors.ControlTextBrushKey}" />
                                </Setter.Value>
                            </Setter>
                        </MultiTrigger>
                    <Trigger Property="UIElement.IsEnabled">
                        <Setter Property="TextElement.Foreground">
                            <Setter.Value>
                                <DynamicResource ResourceKey="{x:Static SystemColors.GrayTextBrushKey}" />
                                </Setter.Value>
                            </Setter>
                        <Trigger.Value>
                            <s:Boolean>
                                False</s:Boolean>
                            </Trigger.Value>
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>

Answer 2

WPF博士有一篇关于ItemsControls的精彩文章，名为（ItemsControl: A to Z），读过I和L

Answer 3

我终于这样做了：

<Style x:Key="myListboxStyle">
    <Style.Resources>
        <SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}" Color="#CCFFFFFF" />
    </Style.Resources>
</Style>

它完美无缺。谢谢你们所有人。

ListView控件中所选行的背景不会更改

3 个答案: