功能完善
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181
NeuWPF/NeoUI/Controls/TreeViewStyle.xaml
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181
NeuWPF/NeoUI/Controls/TreeViewStyle.xaml
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<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
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<Style TargetType="{x:Type TreeView}">
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<Setter Property="Background" Value="{DynamicResource BackgroundContainerBrush}" />
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<Setter Property="BorderBrush" Value="{DynamicResource BorderNormalBrush}" />
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<Setter Property="BorderThickness" Value="1" />
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<Setter Property="Padding" Value="4" />
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<Setter Property="Foreground" Value="{DynamicResource TextPrimaryBrush}" />
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<Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Auto" />
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<Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Auto" />
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<Setter Property="ScrollViewer.PanningMode" Value="Both" />
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<Setter Property="Stylus.IsFlicksEnabled" Value="False" />
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<Setter Property="VerticalContentAlignment" Value="Center" />
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<Setter Property="Template">
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<Setter.Value>
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<ControlTemplate TargetType="{x:Type TreeView}">
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<Border
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Background="{TemplateBinding Background}"
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BorderBrush="{TemplateBinding BorderBrush}"
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BorderThickness="{TemplateBinding BorderThickness}"
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CornerRadius="4"
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SnapsToDevicePixels="true"
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x:Name="Bd">
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<ScrollViewer
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CanContentScroll="false"
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Focusable="false"
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HorizontalScrollBarVisibility="{TemplateBinding ScrollViewer.HorizontalScrollBarVisibility}"
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Padding="{TemplateBinding Padding}"
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SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"
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VerticalScrollBarVisibility="{TemplateBinding ScrollViewer.VerticalScrollBarVisibility}"
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x:Name="treeViewScroll">
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<ItemsPresenter />
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</ScrollViewer>
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</Border>
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<ControlTemplate.Triggers>
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<Trigger Property="IsEnabled" Value="false">
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<Setter Property="Background" TargetName="Bd" Value="{DynamicResource ControlBackgroundDisabledBrush}" />
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</Trigger>
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<Trigger Property="VirtualizingPanel.IsVirtualizing" Value="true">
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<Setter Property="CanContentScroll" TargetName="treeViewScroll" Value="true" />
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</Trigger>
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</ControlTemplate.Triggers>
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</ControlTemplate>
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</Setter.Value>
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</Setter>
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<Style.Triggers>
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<Trigger Property="VirtualizingPanel.IsVirtualizing" Value="true">
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<Setter Property="ItemsPanel">
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<Setter.Value>
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<ItemsPanelTemplate>
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<VirtualizingStackPanel />
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</ItemsPanelTemplate>
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</Setter.Value>
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</Setter>
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</Trigger>
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</Style.Triggers>
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</Style>
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<Style TargetType="{x:Type ToggleButton}" x:Key="ExpandCollapseToggleStyle">
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<Setter Property="Focusable" Value="False" />
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<Setter Property="Foreground" Value="{DynamicResource ControlStrongBackgroundBrush}" />
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<Setter Property="Template">
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<Setter.Value>
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<ControlTemplate TargetType="{x:Type ToggleButton}">
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<Border Background="Transparent">
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<Path
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Data="M1,1 5,5 1,9"
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HorizontalAlignment="Center"
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Stroke="{TemplateBinding Foreground}"
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StrokeThickness="2"
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VerticalAlignment="Center"
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x:Name="ExpandPath" />
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</Border>
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<ControlTemplate.Triggers>
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<Trigger Property="IsChecked" Value="True">
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<Setter Property="Data" TargetName="ExpandPath" Value="M1,1 5,5 9,1" />
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</Trigger>
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<!--<Trigger Property="IsMouseOver" Value="True">
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<Setter Property="Stroke" TargetName="ExpandPath"
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Value="{StaticResource Primary.Focused}"/>
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</Trigger>-->
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</ControlTemplate.Triggers>
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</ControlTemplate>
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</Setter.Value>
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</Setter>
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</Style>
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<Style TargetType="{x:Type TreeViewItem}">
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<Setter Property="Background" Value="Transparent" />
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<Setter Property="HorizontalContentAlignment" Value="{Binding HorizontalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}" />
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<Setter Property="VerticalContentAlignment" Value="{Binding VerticalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}" />
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<Setter Property="Padding" Value="4" />
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<Setter Property="FontSize" Value="14" />
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<Setter Property="Foreground" Value="{DynamicResource TextPrimaryBrush}" />
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<Setter Property="FocusVisualStyle" Value="{StaticResource FocusVisual}" />
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<Setter Property="Template">
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<Setter.Value>
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<ControlTemplate TargetType="{x:Type TreeViewItem}">
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<Grid>
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<Grid.RowDefinitions>
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<RowDefinition Height="Auto" />
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<RowDefinition />
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</Grid.RowDefinitions>
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<Border
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Background="{TemplateBinding Background}"
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BorderBrush="{TemplateBinding BorderBrush}"
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BorderThickness="{TemplateBinding BorderThickness}"
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CornerRadius="4"
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SnapsToDevicePixels="true"
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x:Name="Bd">
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<Grid>
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<Grid.ColumnDefinitions>
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<ColumnDefinition Width="22" />
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<ColumnDefinition Width="auto" />
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<ColumnDefinition Width="*" />
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</Grid.ColumnDefinitions>
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<ToggleButton
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ClickMode="Press"
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IsChecked="{Binding IsExpanded, RelativeSource={RelativeSource TemplatedParent}}"
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Style="{StaticResource ExpandCollapseToggleStyle}"
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x:Name="Expander" />
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<ContentPresenter
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ContentSource="Header"
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Grid.Column="1"
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HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
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Margin="{TemplateBinding Padding}"
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SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"
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x:Name="PART_Header" />
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</Grid>
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</Border>
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<!-- 子对象 -->
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<ItemsPresenter
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Grid.Row="1"
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Margin="16,0,0,0"
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x:Name="ItemsHost" />
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</Grid>
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<ControlTemplate.Triggers>
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<Trigger Property="IsExpanded" Value="false">
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<Setter Property="Visibility" TargetName="ItemsHost" Value="Collapsed" />
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</Trigger>
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<Trigger Property="HasItems" Value="false">
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<Setter Property="Visibility" TargetName="Expander" Value="Hidden" />
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</Trigger>
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<Trigger Property="IsSelected" Value="true">
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<Setter Property="Background" TargetName="Bd" Value="{DynamicResource PrimaryNormalBrush}" />
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<Setter Property="Foreground" Value="{DynamicResource TextOnAccentPrimaryBrush}" />
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<Setter Property="Foreground" TargetName="Expander" Value="{DynamicResource TextOnAccentPrimaryBrush}" />
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</Trigger>
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<Trigger Property="UIElement.IsMouseOver" Value="True">
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<Setter TargetName="Bd" Property="Background" Value="{DynamicResource ControlBackgroundHoverBrush}" />
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</Trigger>
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<MultiTrigger>
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<MultiTrigger.Conditions>
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<Condition Property="IsSelected" Value="true" />
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<Condition Property="IsSelectionActive" Value="false" />
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</MultiTrigger.Conditions>
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<Setter Property="Background" TargetName="Bd" Value="{DynamicResource BackgroundFloatingBrush}" />
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<Setter Property="Foreground" Value="{DynamicResource TextPrimaryBrush}" />
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<Setter Property="Foreground" TargetName="Expander" Value="{DynamicResource ControlStrongBackgroundBrush}" />
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</MultiTrigger>
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<Trigger Property="IsEnabled" Value="false">
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<Setter Property="Foreground" Value="{DynamicResource TextDisabledBrush}" />
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</Trigger>
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</ControlTemplate.Triggers>
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</ControlTemplate>
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</Setter.Value>
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</Setter>
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<Style.Triggers>
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<Trigger Property="VirtualizingPanel.IsVirtualizing" Value="true">
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<Setter Property="ItemsPanel">
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<Setter.Value>
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<ItemsPanelTemplate>
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<VirtualizingStackPanel />
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</ItemsPanelTemplate>
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</Setter.Value>
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</Setter>
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</Trigger>
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</Style.Triggers>
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</Style>
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</ResourceDictionary>
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