<TabItem>
    <TabItem.HeaderTemplate>
                <DataTemplate>
                    <StackPanel>
                        <TextBlock Text="{TemplateBinding Header}"/>
                        <Button Content="x" Command=""/>
                    </StackPanel>
                </DataTemplate>
    </TabItem.HeaderTemplate>
......
<TabItem>

------解决方案--------------------

XML code

<TabItem>
   <TabItem.Triggers>
       <DataTrigger Property="IsSelected" Value="True">
            <Setter .../><!--这里改选中的项的样式--->
       </DataTrigger>
       <DataTrigger Property="IsSelected" Value="False">
            <Setter .../><!--未选中的项的样式--->
       </DataTrigger>
   </TabItem.Triggers>
</TabItem>

------解决方案--------------------

等高手来，一起学习。up

------解决方案--------------------

TabControl Grid.Row="3" Grid.Column="1">
   <TabControl.Items>
       <TabItem Header="Button">
           <Button>Click!</Button>
       </TabItem>
       <TabItem>
           <TabItem.Header>
               <TextBlock FontSize="18"
                   FontFamily="Palatino Linotype">Text</TextBlock>
           </TabItem.Header>
           <TextBlock></TextBlock>
       </TabItem>
       <TabItem>
           <TabItem.Header>
               <Ellipse Fill="Blue" Width="30" Height="20" />
           </TabItem.Header>
       </TabItem>
   </TabControl.Items>
</TabControl>
参考


------解决方案--------------------
翘首以待