Windows Phone 7:突出显示选定的列表框项目 [英] Windows Phone 7: Highlight Selected Listbox item

问题描述

我有以下 XAML(带有自定义 DataTemplate 的简单列表框).我想弄清楚如何突出显示所选项目(可能背景颜色发生变化).我想我需要对 Expression Blend 中的样式做一些事情，但我不太确定从哪里开始......经过一段时间的玩耍后，我现在有了这个(似乎没有任何作用)

I have the following XAML (simple list box with custom DataTemplate). I'm trying to figure out how to highlight the selected item (maybe background colour change). I figure I need to do something with Styles in Expression Blend but I'm not quite sure where to start... After a bit of playing around I now have this (which doesn't seem to do anything)

<phone:PhoneApplicationPage
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone"
    xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:Custom="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity"
    x:Class="SqueezeBox.StartPage"
    d:DataContext="{d:DesignData SampleData/MainViewModelSampleData.xaml}"
    FontFamily="{StaticResource PhoneFontFamilyNormal}"
    FontSize="{StaticResource PhoneFontSizeNormal}"
    Foreground="{StaticResource PhoneForegroundBrush}"
    SupportedOrientations="Portrait"  Orientation="Portrait" 
    mc:Ignorable="d" d:DesignWidth="480" d:DesignHeight="696" 
    shell:SystemTray.IsVisible="True">
    <phone:PhoneApplicationPage.Resources>
        <Style x:Key="HighlightItemStyle" TargetType="ListBoxItem">
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="ListBoxItem">
                        <StackPanel x:Name="DataTemplateStackPanel" Orientation="Horizontal">
                            <VisualStateManager.VisualStateGroups>
                                <VisualStateGroup x:Name="SelectionStates">
                                    <VisualStateGroup.Transitions>
                                        <VisualTransition GeneratedDuration="0" To="Selected">
                                            <Storyboard>
                                                <ColorAnimation Duration="0" To="#FFFD0D0D" Storyboard.TargetProperty="(TextBlock.Foreground).(SolidColorBrush.Color)" Storyboard.TargetName="ItemText" d:IsOptimized="True"/>
                                            </Storyboard>
                                        </VisualTransition>
                                    </VisualStateGroup.Transitions>
                                    <VisualState x:Name="Unselected"/>
                                    <VisualState x:Name="Selected"/>
                                    <VisualState x:Name="SelectedUnfocused"/>
                                </VisualStateGroup>
                            </VisualStateManager.VisualStateGroups>
                            <Image x:Name="ItemImage" Source="{Binding ThumbnailAlbumArtUri}" Height="62" Width="62" VerticalAlignment="Top" Margin="10,0,20,0"/>
                            <StackPanel x:Name="stackPanel">
                                <TextBlock x:Name="ItemText" Text="{Binding Name}" Margin="-2,-13,0,0" Style="{StaticResource PhoneTextExtraLargeStyle}" d:IsHidden="True"/>
                                <TextBlock x:Name="DetailsText" Text="{Binding Artist}" Margin="0,-6,0,3" Style="{StaticResource PhoneTextSubtleStyle}"/>
                            </StackPanel>
                        </StackPanel>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
    </phone:PhoneApplicationPage.Resources>
    <!--Data context is set to sample data above and LayoutRoot contains the root grid where all other page content is placed-->
    <Grid x:Name="LayoutRoot" Background="Transparent" d:DataContext="{Binding ServerStatus.Players[0]}" >
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>

        <!--TitlePanel contains the name of the application and page title-->
        <StackPanel x:Name="TitlePanel" Grid.Row="0" Margin="24,24,0,12">
            <TextBlock x:Name="ApplicationTitle" Text="Now playing" Style="{StaticResource PhoneTextNormalStyle}"/>
            <TextBlock x:Name="ListTitle" Text="{Binding PlayerName}" Margin="-3,-8,0,0" Style="{StaticResource PhoneTextTitle1Style}"/>
            <ProgressBar Visibility="Visible" IsIndeterminate="True" Height="4" HorizontalAlignment="Left" Margin="10,10,0,0" x:Name="progressBar1" VerticalAlignment="Top" Width="460" />
        </StackPanel>

        <!--ContentPanel contains ListBox and ListBox ItemTemplate. Place additional content here-->
        <Grid x:Name="ContentPanel" Grid.Row="1">
            <ListBox x:Name="MainListBox" ItemsSource="{Binding Tracks}" ItemContainerStyle="{StaticResource HighlightItemStyle}" />
        </Grid>
    </Grid>
</phone:PhoneApplicationPage>

推荐答案

Does my answer from 这篇文章有帮助吗?

Does my answer from this post help?

我认为最简单的方法是去通过表达混合.右键单击你的 ListBox(主控件，不是它的项目).然后转到编辑附加模板....(项目容器样式)....编辑当前".Blend 然后将加载一个新页面您可以修改样式容器.在左上角的窗格中(其中您可以选择项目、资产等...)单击状态".你会看到一个列表的状态.修改你想要的改变，希望这应该工作

I think the easiest way would be to go via Expression Blend. Right click on your ListBox (the main control, not its items). Then go to "Edit Additional Templates....(Item Container Style)....Edit Current". Blend will then load a new page for you to modify the styling of the container. In the top left pane (where you can choose project, assets etc...) click on "States". You'll see a list of states. Modify the ones you'd like to change and hopefully that should work

<ControlTemplate TargetType="ListBoxItem">
 <Border x:Name="LayoutRoot" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" HorizontalAlignment="{TemplateBinding HorizontalAlignment}" VerticalAlignment="{TemplateBinding VerticalAlignment}">
  <VisualStateManager.VisualStateGroups>
   <VisualStateGroup x:Name="CommonStates">
    <VisualState x:Name="Normal"/>
    <VisualState x:Name="MouseOver"/>

   </VisualStateGroup>
   <VisualStateGroup x:Name="SelectionStates">
    <VisualState x:Name="Unselected">
     <Storyboard>
      <ColorAnimation Duration="0" To="White" Storyboard.TargetProperty="(Control.Background).(SolidColorBrush.Color)" Storyboard.TargetName="ContentContainer" d:IsOptimized="True"/>
      <ColorAnimation Duration="0" To="White" Storyboard.TargetProperty="(Control.Foreground).(SolidColorBrush.Color)" Storyboard.TargetName="ContentContainer" d:IsOptimized="True"/>
     </Storyboard>
    </VisualState>
    <VisualState x:Name="Selected">
     <Storyboard>
      <ColorAnimation Duration="0" To="Red" Storyboard.TargetProperty="(Control.Foreground).(SolidColorBrush.Color)" Storyboard.TargetName="ContentContainer" d:IsOptimized="True"/>
     </Storyboard>
    </VisualState>
    <VisualState x:Name="SelectedUnfocused">
     <Storyboard>
      <ColorAnimation Duration="0" To="Red" Storyboard.TargetProperty="(Control.Foreground).(SolidColorBrush.Color)" Storyboard.TargetName="ContentContainer" d:IsOptimized="True"/>
     </Storyboard>
    </VisualState>
   </VisualStateGroup>
  </VisualStateManager.VisualStateGroups>
  <ContentControl x:Name="ContentContainer" ContentTemplate="{TemplateBinding ContentTemplate}" Content="{TemplateBinding Content}" Foreground="#FF1BA1E2" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" Background="Black" BorderBrush="Black"/>
 </Border>
</ControlTemplate>

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