I have created a PivotItemHeader style with a key in resources but don't know where to apply this although if I remove Key it will be applied to all the PivotItemHeader but I don't want to do that, I want to apply this only for selected Pivot.
<Style TargetType="PivotHeaderItem" x:Key"PivotHeaderItemInnserStyle">
<Setter Property="FontSize" Value="{ThemeResource PivotHeaderItemFontSize}" />
<Setter Property="FontFamily" Value="{ThemeResource PivotHeaderItemFontFamily}" />
<Setter Property="FontWeight" Value="{ThemeResource PivotHeaderItemThemeFontWeight}" />
<Setter Property="CharacterSpacing" Value="{ThemeResource PivotHeaderItemCharacterSpacing}" />
<Setter Property="Background" Value="{StaticResource PivotHeaderItemSelectedBackgroundBrush}" />
<Setter Property="Foreground" Value="#FFEAE8E8" />
<Setter Property="Padding" Value="0" />
<Setter Property="Margin" Value="0" />
<Setter Property="Height" Value="48" />
<Setter Property="VerticalContentAlignment" Value="Stretch" />
<Setter Property="IsTabStop" Value="False" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="PivotHeaderItem">
<Grid
x:Name="Grid"
Background="{TemplateBinding Background}">
<Grid.Resources>
<Style x:Key="BaseContentPresenterStyle" TargetType="ContentPresenter">
<Setter Property="FontFamily" Value="XamlAutoFontFamily"/>
<Setter Property="FontWeight" Value="SemiBold"/>
<Setter Property="FontSize" Value="15"/>
<Setter Property="TextWrapping" Value="Wrap"/>
<Setter Property="LineStackingStrategy" Value="MaxHeight"/>
<Setter Property="TextLineBounds" Value="Full"/>
<Setter Property="OpticalMarginAlignment" Value="TrimSideBearings"/>
</Style>
<Style x:Key="BodyContentPresenterStyle" TargetType="ContentPresenter" BasedOn="{StaticResource BaseContentPresenterStyle}">
<Setter Property="FontFamily" Value="{ThemeResource PivotHeaderItemFontFamily}" />
<Setter Property="FontWeight" Value="{ThemeResource PivotHeaderItemThemeFontWeight}"/>
<Setter Property="FontSize" Value="{ThemeResource PivotHeaderItemFontSize}"/>
</Style>
</Grid.Resources>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="SelectionStates">
<VisualStateGroup.Transitions>
<VisualTransition From="Unselected" To="UnselectedLocked" GeneratedDuration="0:0:0.33" />
<VisualTransition From="UnselectedLocked" To="Unselected" GeneratedDuration="0:0:0.33" />
</VisualStateGroup.Transitions>
<VisualState x:Name="Disabled">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
Storyboard.TargetProperty="Foreground" >
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlDisabledBaseMediumLowBrush}" />
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Unselected" />
<VisualState x:Name="UnselectedLocked">
<Storyboard>
<DoubleAnimation Storyboard.TargetName="ContentPresenterTranslateTransform"
Storyboard.TargetProperty="X"
Duration="0" To="{ThemeResource PivotHeaderItemLockedTranslation}" />
<DoubleAnimation Storyboard.TargetName="ContentPresenter"
Storyboard.TargetProperty="(UIElement.Opacity)"
Duration="0" To="0" />
</Storyboard>
</VisualState>
<VisualState x:Name="Selected">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
Storyboard.TargetProperty="Foreground" >
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PivotHeaderItemHoverForegroundBrush}" />
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="UnselectedPointerOver">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
Storyboard.TargetProperty="Foreground" >
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PivotHeaderItemHoverForegroundBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="Grid"
Storyboard.TargetProperty="Background" >
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightTransparentBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="headerItemBorder"
Storyboard.TargetProperty="Background" >
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PivotHeaderItemHoverBackgroundBrush}" />
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="SelectedPointerOver">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
Storyboard.TargetProperty="Foreground" >
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PivotHeaderItemHoverForegroundBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="Grid"
Storyboard.TargetProperty="Background" >
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightTransparentBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="headerItemBorder"
Storyboard.TargetProperty="Background" >
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PivotHeaderItemHoverBackgroundBrush}" />
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="UnselectedPressed">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
Storyboard.TargetProperty="Foreground" >
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PivotHeaderItemUnSelectedPressedForegroundBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="Grid"
Storyboard.TargetProperty="Background" >
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PivotHeaderItemUnSelectedPressedBackgroundBrush}" />
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="SelectedPressed">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
Storyboard.TargetProperty="Foreground" >
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PivotHeaderItemSelectedPressedForegroundBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="Grid"
Storyboard.TargetProperty="Background" >
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource PivotHeaderItemSelectedPressedBackgroundBrush}" />
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<!--Content="{TemplateBinding Content}"-->
<ContentPresenter
x:Name="ContentPresenter"
Foreground="Gray"
ContentTemplate="{TemplateBinding ContentTemplate}"
Margin="{TemplateBinding Padding}"
FontSize="{TemplateBinding FontSize}"
FontFamily="{TemplateBinding FontFamily}"
FontWeight="{TemplateBinding FontWeight}"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}">
<ContentPresenter.RenderTransform>
<TranslateTransform x:Name="ContentPresenterTranslateTransform" />
</ContentPresenter.RenderTransform>
<Border Name="headerItemBorder" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Padding="16,2">
<TextBlock Text="{TemplateBinding Content}" FontFamily="{StaticResource PivotHeaderItemFontFamily}" FontSize="{StaticResource PivotHeaderItemFontSize}"
/>
</Border>
</ContentPresenter>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
