Windows Phone 7:突出显示“选定的列表框"项 [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).我试图弄清楚如何突出显示所选项目(可能是背景颜色变化).我认为我需要对Expression Blend中的样式做一些事情，但是我不太确定从哪里开始. 经过一番游戏后，我现在有了这个(它似乎什么都没做)

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

我的回答是否来自

Does my answer from this post help?

我认为最简单的方法就是走 通过Expression Blend.右键点击 您的ListBox(主控件，而不是 其项目).然后转到编辑 附加模板...(项目 容器样式)....编辑当前". Blend将为以下页面加载一个新页面 您修改的样式 容器.在左上方的窗格(其中 您可以选择项目，资产等...) 单击状态".您会看到一个列表 状态.修改您想要的 改变，希望那应该 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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