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(Windows Phone 용 Silverlight Toolkit에서) ExpanderView 머리글의 스타일을 사용자 지정하고 싶습니다. 예를 들어 머리글의 전경을 주황색으로 변경하고 싶습니다. 어떻게 도달 할 수 있습니까?확장 상태의 ExpanderView 머리글 스타일
<Style x:Key="ExpanderViewStyle1" TargetType="toolkit:ExpanderView">
<Setter Property="HorizontalAlignment" Value="Stretch"/>
<Setter Property="HorizontalContentAlignment" Value="Stretch"/>
<Setter Property="ItemsPanel">
<Setter.Value>
<ItemsPanelTemplate>
<StackPanel/>
</ItemsPanelTemplate>
</Setter.Value>
</Setter>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="toolkit:ExpanderView">
<Grid>
<Grid.Resources>
<QuadraticEase x:Key="QuadraticEaseOut" EasingMode="EaseOut"/>
<QuadraticEase x:Key="QuadraticEaseInOut" EasingMode="EaseInOut"/>
</Grid.Resources>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="ExpansionStates">
<VisualStateGroup.Transitions>
<VisualTransition From="Collapsed" GeneratedDuration="0:0:0.15" To="Expanded">
<Storyboard>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(FrameworkElement.Height)" Storyboard.TargetName="ItemsCanvas">
<EasingDoubleKeyFrame EasingFunction="{StaticResource QuadraticEaseOut}" KeyTime="0:0:0.00" Value="0"/>
<EasingDoubleKeyFrame x:Name="CollapsedToExpandedKeyFrame" EasingFunction="{StaticResource QuadraticEaseOut}" KeyTime="0:0:0.15" Value="1"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimation Duration="0" To="1.0" Storyboard.TargetProperty="(UIElement.Opacity)" Storyboard.TargetName="ItemsCanvas"/>
</Storyboard>
</VisualTransition>
<VisualTransition From="Expanded" GeneratedDuration="0:0:0.15" To="Collapsed">
<Storyboard>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(FrameworkElement.Height)" Storyboard.TargetName="ItemsCanvas">
<EasingDoubleKeyFrame x:Name="ExpandedToCollapsedKeyFrame" EasingFunction="{StaticResource QuadraticEaseInOut}" KeyTime="0:0:0.00" Value="1"/>
<EasingDoubleKeyFrame EasingFunction="{StaticResource QuadraticEaseInOut}" KeyTime="0:0:0.15" Value="0"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Opacity)" Storyboard.TargetName="ItemsCanvas">
<EasingDoubleKeyFrame EasingFunction="{StaticResource QuadraticEaseInOut}" KeyTime="0:0:0.00" Value="1.0"/>
<EasingDoubleKeyFrame EasingFunction="{StaticResource QuadraticEaseInOut}" KeyTime="0:0:0.15" Value="0.0"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.RenderTransform).(CompositeTransform.TranslateY)" Storyboard.TargetName="ItemsCanvas">
<EasingDoubleKeyFrame EasingFunction="{StaticResource QuadraticEaseInOut}" KeyTime="0:0:0.00" Value="0.0"/>
<EasingDoubleKeyFrame EasingFunction="{StaticResource QuadraticEaseInOut}" KeyTime="0:0:0.15" Value="-35"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</VisualTransition>
</VisualStateGroup.Transitions>
<VisualState x:Name="Collapsed">
<Storyboard>
<DoubleAnimation Duration="0" To="0" Storyboard.TargetProperty="(FrameworkElement.Height)" Storyboard.TargetName="ItemsCanvas"/>
<DoubleAnimation Duration="0" To="0.0" Storyboard.TargetProperty="(UIElement.Opacity)" Storyboard.TargetName="ItemsCanvas"/>
</Storyboard>
</VisualState>
<VisualState x:Name="Expanded">
<Storyboard>
<DoubleAnimation Duration="0" Storyboard.TargetProperty="(FrameworkElement.Height)" Storyboard.TargetName="ItemsCanvas"/>
<DoubleAnimation Duration="0" To="1.0" Storyboard.TargetProperty="(UIElement.Opacity)" Storyboard.TargetName="ItemsCanvas"/>
</Storyboard>
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="ExpandabilityStates">
<VisualState x:Name="Expandable"/>
<VisualState x:Name="NonExpandable">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Visibility)" Storyboard.TargetName="ExpandableContent">
<DiscreteObjectKeyFrame KeyTime="0:0:0.0" Value="Collapsed"/>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Visibility)" Storyboard.TargetName="NonExpandableContent">
<DiscreteObjectKeyFrame KeyTime="0:0:0.0" Value="Visible"/>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<ListBoxItem x:Name="ExpandableContent" toolkit:TiltEffect.IsTiltEnabled="False" Grid.ColumnSpan="2" Grid.Column="0" Grid.Row="0" Grid.RowSpan="2">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<ContentControl x:Name="Header" Grid.ColumnSpan="2" ContentTemplate="{TemplateBinding HeaderTemplate}" Content="{TemplateBinding Header}" Grid.Column="0" HorizontalAlignment="Stretch" HorizontalContentAlignment="Stretch" Grid.Row="0"/>
<ContentControl x:Name="Expander" ContentTemplate="{TemplateBinding ExpanderTemplate}" Content="{TemplateBinding Expander}" Grid.Column="1" HorizontalAlignment="Stretch" HorizontalContentAlignment="Stretch" Grid.Row="1"/>
<Grid x:Name="ExpanderPanel" Background="Transparent" Grid.ColumnSpan="2" Grid.Column="0" Grid.Row="0" Grid.RowSpan="2"/>
</Grid>
</ListBoxItem>
<ContentControl x:Name="NonExpandableContent" Grid.ColumnSpan="2" ContentTemplate="{TemplateBinding NonExpandableHeaderTemplate}" Content="{TemplateBinding NonExpandableHeader}" Grid.Column="0" HorizontalAlignment="Stretch" HorizontalContentAlignment="Stretch" Grid.Row="0" Grid.RowSpan="2" Visibility="Collapsed"/>
<Canvas x:Name="ItemsCanvas" Grid.Column="1" Opacity="0.0" Grid.Row="2">
<Canvas.RenderTransform>
<CompositeTransform TranslateY="0.0"/>
</Canvas.RenderTransform>
<ItemsPresenter x:Name="Presenter"/>
</Canvas>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>