CrossFadeTabControlStyle

CrossFadeTabControlStyle.xaml

<Style x:Key="CrossFadeTabControlStyle"
       TargetType="{x:Type TabControl}"
       BasedOn="{StaticResource DefaultTabControlStyle}">
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type TabControl}">
                <Grid
                    x:Name="templateRoot"
                    ClipToBounds="true"
                    KeyboardNavigation.TabNavigation="Local"
                    SnapsToDevicePixels="true">
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition x:Name="ColumnDefinition0" />
                        <ColumnDefinition x:Name="ColumnDefinition1" Width="0" />
                    </Grid.ColumnDefinitions>
                    <Grid.RowDefinitions>
                        <RowDefinition x:Name="RowDefinition0" Height="Auto" />
                        <RowDefinition x:Name="RowDefinition1" Height="*" />
                    </Grid.RowDefinitions>
                    <DockPanel
                        x:Name="headerPanel"
                        ClipToBounds="True"
                        Panel.ZIndex="1"
                        Grid.Row="0"
                        Grid.Column="0"
                        Background="{TemplateBinding Background}">

                        <ContentPresenter
                            DockPanel.Dock="Left"
                            x:Name="HeaderContentPresenter"
                            Content="{TemplateBinding ui:TabControlHelper.TabStripHeader}"
                            ContentTemplate="{TemplateBinding ui:TabControlHelper.TabStripHeaderTemplate}"
                            SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />

                        <TabPanel
                            DockPanel.Dock="Left"
                            x:Name="TabPanel"
                            Background="Transparent"
                            Margin="{DynamicResource TabViewTopHeaderPadding}"
                            IsItemsHost="true" />

                        <ContentPresenter
                            DockPanel.Dock="Right"
                            x:Name="FooterContentPresenter"
                            HorizontalAlignment="Stretch"
                            Content="{TemplateBinding ui:TabControlHelper.TabStripFooter}"
                            ContentTemplate="{TemplateBinding ui:TabControlHelper.TabStripFooterTemplate}"
                            SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />

                    </DockPanel>
                    <Border
                        x:Name="contentPanel"
                        Grid.Row="1"
                        Grid.Column="0"
                        BorderBrush="{TemplateBinding BorderBrush}"
                        BorderThickness="{TemplateBinding BorderThickness}"
                        KeyboardNavigation.DirectionalNavigation="Contained"
                        KeyboardNavigation.TabNavigation="Local">
                        <sc:CrossFadeContentControl
                            x:Name="PART_SelectedContentHost"
                            Focusable="False"
                            Margin="{TemplateBinding Padding}"
                            Content="{TemplateBinding SelectedContent}"
                            ContentStringFormat="{TemplateBinding SelectedContentStringFormat}"
                            ContentTemplate="{TemplateBinding SelectedContentTemplate}"
                            ContentTemplateSelector="{TemplateBinding SelectedContentTemplateSelector}"
                            SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />
                    </Border>
                </Grid>
                <ControlTemplate.Triggers>
                    <Trigger Property="TabStripPlacement" Value="Top">
                        <Setter TargetName="TabPanel" Property="VerticalAlignment" Value="Bottom" />
                    </Trigger>
                    <Trigger Property="TabStripPlacement" Value="Bottom">
                        <Setter TargetName="headerPanel" Property="Grid.Row" Value="1" />
                        <Setter TargetName="contentPanel" Property="Grid.Row" Value="0" />
                        <Setter TargetName="RowDefinition0" Property="Height" Value="*" />
                        <Setter TargetName="RowDefinition1" Property="Height" Value="Auto" />
                        <Setter TargetName="TabPanel" Property="VerticalAlignment" Value="Top" />
                        <Setter TargetName="TabPanel" Property="Margin" Value="{DynamicResource TabViewBottomHeaderPadding}" />
                    </Trigger>
                    <Trigger Property="TabStripPlacement" Value="Left">
                        <Setter TargetName="headerPanel" Property="Grid.Row" Value="0" />
                        <Setter TargetName="contentPanel" Property="Grid.Row" Value="0" />
                        <Setter TargetName="headerPanel" Property="Grid.Column" Value="0" />
                        <Setter TargetName="contentPanel" Property="Grid.Column" Value="1" />
                        <Setter TargetName="ColumnDefinition0" Property="Width" Value="Auto" />
                        <Setter TargetName="ColumnDefinition1" Property="Width" Value="*" />
                        <Setter TargetName="RowDefinition0" Property="Height" Value="*" />
                        <Setter TargetName="RowDefinition1" Property="Height" Value="0" />
                        <Setter TargetName="HeaderContentPresenter" Property="DockPanel.Dock" Value="Top" />
                        <Setter TargetName="TabPanel" Property="DockPanel.Dock" Value="Top" />
                        <Setter TargetName="TabPanel" Property="HorizontalAlignment" Value="Right" />
                        <Setter TargetName="TabPanel" Property="Margin" Value="{DynamicResource TabViewLeftHeaderPadding}" />
                        <Setter TargetName="FooterContentPresenter" Property="DockPanel.Dock" Value="Bottom" />
                    </Trigger>
                    <Trigger Property="TabStripPlacement" Value="Right">
                        <Setter TargetName="headerPanel" Property="Grid.Row" Value="0" />
                        <Setter TargetName="contentPanel" Property="Grid.Row" Value="0" />
                        <Setter TargetName="headerPanel" Property="Grid.Column" Value="1" />
                        <Setter TargetName="contentPanel" Property="Grid.Column" Value="0" />
                        <Setter TargetName="ColumnDefinition0" Property="Width" Value="*" />
                        <Setter TargetName="ColumnDefinition1" Property="Width" Value="Auto" />
                        <Setter TargetName="RowDefinition0" Property="Height" Value="*" />
                        <Setter TargetName="RowDefinition1" Property="Height" Value="0" />
                        <Setter TargetName="HeaderContentPresenter" Property="DockPanel.Dock" Value="Top" />
                        <Setter TargetName="TabPanel" Property="DockPanel.Dock" Value="Top" />
                        <Setter TargetName="TabPanel" Property="HorizontalAlignment" Value="Left" />
                        <Setter TargetName="TabPanel" Property="Margin" Value="{DynamicResource TabViewRightHeaderPadding}" />
                        <Setter TargetName="FooterContentPresenter" Property="DockPanel.Dock" Value="Bottom" />
                    </Trigger>
                </ControlTemplate.Triggers>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>