TabbedMDILayoutKind=Preview for auto hide tabs?

Hi Andrew,

The TabbedMdiLayoutKind enum is only for tabbed MDI and doesn't affect anything else.  The AutoHideTabStrip primitive control currently uses an ItemsPanel like this for its layout:

<Setter Property="ItemsPanel">
	<Setter.Value>
		<ItemsPanelTemplate>
			<StackPanel Orientation="Horizontal" />
		</ItemsPanelTemplate>
	</Setter.Value>
</Setter>

If you wanted anything different, then you could possibly make a new Style in your App.Resources that targets AutoHideTabStrip and use a different custom Panel in place of the StackPanel.

Here's what I ended up with, in case it helps anyone:

            <docking:DockSite.Resources>
                <Style TargetType="{x:Type docking:AutoHideTabGroup}">
                    <Setter Property="ItemsPanel">
                        <Setter.Value>
                            <ItemsPanelTemplate>
                                <DockPanel LastChildFill="True" HorizontalAlignment="Stretch" Margin="0,0,-12,0" />
                            </ItemsPanelTemplate>
                        </Setter.Value>
                    </Setter>
                    <Setter Property="HorizontalAlignment" Value="Stretch"/>
                </Style>
                <Style TargetType="{x:Type docking:AutoHideTabItem}">
                    <Setter Property="DockPanel.Dock" Value="Left"/>
                    <Setter Property="HorizontalAlignment" Value="Right"/>
                </Style>
                <Style TargetType="{x:Type docking:AutoHideTabStrip}">
                    <Setter Property="ItemsPanel">
                        <Setter.Value>
                            <ItemsPanelTemplate>
                                <DockPanel LastChildFill="True" HorizontalAlignment="Stretch" />
                            </ItemsPanelTemplate>
                        </Setter.Value>
                    </Setter>
                </Style>
            </docking:DockSite.Resources>