C# WPF'de Birleşik Butonlar

<Window x:Class="Forum.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">
    <Grid> 

        <TabControl TabStripPlacement="Left" Margin="0, 0, 0, 10">
            <TabItem Name="gemiler">

                <TabItem.HeaderTemplate>
                    <DataTemplate>
                        <StackPanel Orientation="Vertical">
                            <Image Source="Resimler/6.jpg" Width="32" Height="32"/>
                            <TextBlock Text="Gemiler"/>
                        </StackPanel>
                    </DataTemplate>
                </TabItem.HeaderTemplate>

                <TabItem.Content>
                    <TextBlock TextWrapping="WrapWithOverflow">
       Gemiler Gemiler Gemiler ....
                    </TextBlock>
                </TabItem.Content>
            </TabItem>

            <TabItem Name="tropik">
           
                <TabItem.HeaderTemplate>
                    <DataTemplate>
                        <StackPanel Orientation="Vertical">
                            <Image Source="Resimler/7.jpg" Width="32" Height="32"/>
                            <TextBlock Text="Tropikal"/>
                        </StackPanel>
                    </DataTemplate>
                </TabItem.HeaderTemplate>
           
                <TabItem.Content>
                    <TextBlock TextWrapping="WrapWithOverflow">
        Tropikal Ağaçlar....
                    </TextBlock>
                </TabItem.Content>
            </TabItem>
        </TabControl>

    </Grid>
</Window>