下午好，
我有一个列表框，它使用模型中的项目列表，地址和R地址（从地址继承）
现在，之前我一直在ItemContainerStyle中创建我的项目模板，这样我只有自己的焦点视觉效果（即没有虚线，没有浅灰色矩形等）。这在过去一直很好。
我现在需要两个模板，每种类型一个（地址和RAddress）。我在ListBox.resources中创建了这些作为默认模板（例如下面的代码）：
<DataTemplate DataType="{x:Type DAL:RAddress}">
我的listbox的ItemContainerStyle属性也指向以下内容：
<Style x:Key="AddressContainerStyle" TargetType="{x:Type ListBoxItem}">
<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="Padding" Value="0,0,0,0"/>
<Setter Property="FocusVisualStyle" Value="{x:Null}"/>
</Style>
以前，当模板应用于样式时，这会使虚线和灰色矩形视觉显示。但是，现在他们这样做了，我设置的VisualState设置似乎没有得到应用。
整个DataTemplate示例如下：
<DataTemplate DataType="{x:Type DAL:Address}">
<Border x:Name="Bd" SnapsToDevicePixels="true" Background="#4C000000" CornerRadius="10" Padding="0" BorderBrush="#00FF0000" BorderThickness="1">
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="SelectionStates">
<VisualState x:Name="Unselected"/>
<VisualState x:Name="Selected">
<Storyboard>
<ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(Panel.Background).(SolidColorBrush.Color)" Storyboard.TargetName="Bd">
<EasingColorKeyFrame KeyTime="0" Value="#80000000"/>
</ColorAnimationUsingKeyFrames>
<ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(Border.BorderBrush).(SolidColorBrush.Color)" Storyboard.TargetName="Bd">
<EasingColorKeyFrame KeyTime="0" Value="#00FF0000"/>
</ColorAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="SelectedUnfocused">
<Storyboard>
<ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(Panel.Background).(SolidColorBrush.Color)" Storyboard.TargetName="Bd">
<EasingColorKeyFrame KeyTime="0" Value="#80000000"/>
</ColorAnimationUsingKeyFrames>
<ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(Border.BorderBrush).(SolidColorBrush.Color)" Storyboard.TargetName="Bd">
<EasingColorKeyFrame KeyTime="0" Value="Red"/>
</ColorAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Grid Height="Auto" Width="Auto">
<CheckBox x:Name="checkBox" Content="CheckBox" Margin="0" VerticalAlignment="Top" d:LayoutOverrides="Width" Style="{DynamicResource EditGemStyle}" HorizontalAlignment="Right" IsChecked="{Binding EditMode}"/>
<StackPanel Margin="0" Orientation="Vertical" d:LayoutOverrides="Height">
<Grid x:Name="DisplayGrid" Height="Auto" Width="Auto" d:LayoutOverrides="Width" VerticalAlignment="Stretch" Margin="7,3,11,3">
<StackPanel Orientation="Vertical" Width="Auto" d:LayoutOverrides="Width, Height" Margin="0,0,10,0">
<TextBlock x:Name="AddressFriendlyName" TextWrapping="Wrap" Text="{Binding AddressFriendlyName}" FontSize="18.667" Style="{DynamicResource Data}"/>
<TextBlock x:Name="Address1" TextWrapping="Wrap" Text="{Binding Address1}" d:LayoutOverrides="Width" FontSize="13.333" Style="{DynamicResource Data}"/>
<TextBlock x:Name="Address2" TextWrapping="Wrap" Text="{Binding Address2}" FontSize="13.333" Style="{DynamicResource Data}"/>
<TextBlock x:Name="Address3" TextWrapping="Wrap" Text="{Binding Address3}" FontSize="13.333" Style="{DynamicResource Data}"/>
<StackPanel Orientation="Horizontal">
<TextBlock x:Name="City" TextWrapping="Wrap" Text="{Binding City}" FontSize="13.333" Style="{DynamicResource Data}"/>
<TextBlock TextWrapping="Wrap" Text=", " FontSize="13.333" Style="{DynamicResource Data}"/>
<TextBlock x:Name="State" TextWrapping="Wrap" Text="{Binding State}" Margin="0,0,5,0" FontSize="13.333" Style="{DynamicResource Data}"/>
<TextBlock x:Name="ZIP" TextWrapping="Wrap" Text="{Binding ZIP}" FontSize="13.333" Style="{DynamicResource Data}"/>
</StackPanel>
<TextBlock x:Name="Country" TextWrapping="Wrap" Text="{Binding Country}" FontSize="13.333" Style="{DynamicResource Data}"/>
</StackPanel>
</Grid>
<Grid x:Name="EditGrid" Height="Auto" Margin="7,3,11,0" Visibility="Collapsed">
<StackPanel Orientation="Vertical" Width="Auto" Margin="0,0,10,0" d:LayoutOverrides="Width, Height">
<TextBox x:Name="AddressFriendlyName1" TextWrapping="Wrap" Text="{Binding AddressFriendlyName}" Template="{DynamicResource SnazzyTextBoxTemplate}" Margin="0,2" Foreground="White"/>
<TextBox x:Name="Address4" TextWrapping="Wrap" Text="{Binding Address1}" d:LayoutOverrides="Width" Template="{DynamicResource SnazzyTextBoxTemplate}" Margin="0,2" Foreground="White"/>
<TextBox x:Name="Address5" TextWrapping="Wrap" Text="{Binding Address2}" Template="{DynamicResource SnazzyTextBoxTemplate}" Margin="0,2" Foreground="White"/>
<TextBox x:Name="Address6" TextWrapping="Wrap" Text="{Binding Address3}" Template="{DynamicResource SnazzyTextBoxTemplate}" Margin="0,2" Foreground="White"/>
<StackPanel Orientation="Horizontal">
<TextBox x:Name="City1" TextWrapping="Wrap" Text="{Binding City}" Template="{DynamicResource SnazzyTextBoxTemplate}" Margin="0,2" Foreground="White"/>
<TextBlock TextWrapping="Wrap" Text=", " Foreground="White"/>
<TextBox x:Name="State1" TextWrapping="Wrap" Text="{Binding State}" Margin="0,2,5,2" Template="{DynamicResource SnazzyTextBoxTemplate}" Foreground="White"/>
<TextBox x:Name="ZIP1" TextWrapping="Wrap" Text="{Binding ZIP}" Template="{DynamicResource SnazzyTextBoxTemplate}" Margin="0,2" Foreground="White"/>
</StackPanel>
<TextBox x:Name="Country1" TextWrapping="Wrap" Text="{Binding Country}" Template="{DynamicResource SnazzyTextBoxTemplate}" Margin="0,2" Foreground="White"/>
</StackPanel>
</Grid>
</StackPanel>
</Grid>
</Border>
<DataTemplate.Triggers>
<DataTrigger Binding="{Binding Address2}" Value="{x:Null}">
<Setter TargetName="Address2" Property="Visibility" Value="Collapsed"/>
</DataTrigger>
<DataTrigger Binding="{Binding Address3}" Value="{x:Null}">
<Setter TargetName="Address3" Property="Visibility" Value="Collapsed"/>
</DataTrigger>
<DataTrigger Binding="{Binding EditMode}" Value="False">
<Setter Property="Visibility" TargetName="DisplayGrid" Value="Visible"/>
<Setter Property="Visibility" TargetName="EditGrid" Value="Collapsed"/>
</DataTrigger>
<DataTrigger Binding="{Binding EditMode}" Value="True">
<Setter Property="Visibility" TargetName="DisplayGrid" Value="Collapsed"/>
<Setter Property="Visibility" TargetName="EditGrid" Value="Visible"/>
</DataTrigger>
</DataTemplate.Triggers>
以前我尝试使用StyleSelector在创建的ItemContainerStyles之间进行选择（每种类型一个）。这导致我在不可变对象实例上遇到错误“无法动画'（0）。（1）'，所以我开始查看我现在的设置。
如何在同一个ListBox中托管的两个单独的Item模板上强制执行我自己的Focus和Selection样式？
非常感谢任何帮助。
答案 0 :(得分：1)
我认为您需要将故事板的规范移动到ItemContainerStyle，而不是在DataTemplates中指定它们。这更干燥，并且会减少并发症。
<Window.Resources>
<DataTemplate DataType="{x:Type DAL:RAddress}">
<TextBlock>RAddress!</TextBlock>
</DataTemplate>
<DataTemplate DataType="{x:Type DAL:Address}">
<TextBlock>Address!</TextBlock>
</DataTemplate>
<Style x:Key="IHateDottedBorders" TargetType="{x:Type ListBoxItem}">
<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="Padding" Value="0,0,0,0"/>
<Setter Property="FocusVisualStyle" Value="{x:Null}"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ListBoxItem}">
<Border x:Name="Bd" SnapsToDevicePixels="true" Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Padding="{TemplateBinding Padding}">
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="SelectionStates">
<VisualState x:Name="Unselected"/>
<VisualState x:Name="Selected">
<Storyboard>
<ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(Panel.Background).(SolidColorBrush.Color)" Storyboard.TargetName="Bd">
<EasingColorKeyFrame KeyTime="0" Value="#80000000"/>
</ColorAnimationUsingKeyFrames>
<ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(Border.BorderBrush).(SolidColorBrush.Color)" Storyboard.TargetName="Bd">
<EasingColorKeyFrame KeyTime="0" Value="#00FF0000"/>
</ColorAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="SelectedUnfocused">
<Storyboard>
<ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(Panel.Background).(SolidColorBrush.Color)" Storyboard.TargetName="Bd">
<EasingColorKeyFrame KeyTime="0" Value="#80000000"/>
</ColorAnimationUsingKeyFrames>
<ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(Border.BorderBrush).(SolidColorBrush.Color)" Storyboard.TargetName="Bd">
<EasingColorKeyFrame KeyTime="0" Value="Red"/>
</ColorAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsSelected" Value="true">
<Setter Property="Background" TargetName="Bd" Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}"/>
<Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.HighlightTextBrushKey}}"/>
</Trigger>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="IsSelected" Value="true"/>
<Condition Property="Selector.IsSelectionActive" Value="false"/>
</MultiTrigger.Conditions>
<Setter Property="Background" TargetName="Bd" Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}"/>
<Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>
</MultiTrigger>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Window.Resources>
<Grid>
<ListBox ItemContainerStyle="{StaticResource IHateDottedBorders}" ItemsSource="{Binding CollectionOfAddresses}" />
</Grid>