程序中经常会用到TabControl控件，默认的控件样式很普通。而且样式或功能不一定符合我们的要求。比如：我们需要TabControl的标题能够居中、或平均分布；或者我们希望TabControl的标题能够进行关闭。要实现这些功能我们需要对TabControl的样式进行定义。
二、实现TabControl的标题平均分布默认的TabControl标题是使用TabPanel容器包含的。要想实现TabControl标题头平均分布，需要把TabPanel替换成UniformGrid；
替换后的TabControl样式如下：
<Style x:Key="TabControlStyle" TargetType="{x:Type TabControl}"> <Setter Property="Padding" Value="2"/> <Setter Property="HorizontalContentAlignment" Value="Center"/> <Setter Property="VerticalContentAlignment" Value="Center"/> <Setter Property="Background" Value="White"/> <Setter Property="BorderBrush" Value="#FFACACAC"/> <Setter Property="BorderThickness" Value="1"/> <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type TabControl}"> <Grid x:Name="templateRoot" ClipToBounds="True" SnapsToDevicePixels="True" KeyboardNavigation.TabNavigation="Local"> <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> <UniformGrid x:Name="HeaderPanel" Rows="1" Background="Transparent" Grid.Column="0" IsItemsHost="True" Margin="0" Grid.Row="0" KeyboardNavigation.TabIndex="1" Panel.ZIndex="1"/> <Line X1="0" X2="{Binding ActualWidth, RelativeSource={RelativeSource Self}}" Stroke="White" StrokeThickness="0.1" VerticalAlignment="Bottom" Margin="0 0 0 1" SnapsToDevicePixels="True"/> <Border x:Name="ContentPanel" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Grid.Column="0" KeyboardNavigation.DirectionalNavigation="Contained" Grid.Row="1" KeyboardNavigation.TabIndex="2" KeyboardNavigation.TabNavigation="Local"> <ContentPresenter x:Name="PART_SelectedContentHost" ContentTemplate="{TemplateBinding SelectedContentTemplate}" Content="{TemplateBinding SelectedContent}" ContentStringFormat="{TemplateBinding SelectedContentStringFormat}" ContentSource="SelectedContent" Margin="0" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/> </Border> </Grid> <ControlTemplate.Triggers> <Trigger Property="TabStripPlacement" Value="Bottom"> <Setter Property="Grid.Row" TargetName="HeaderPanel" Value="1"/> <Setter Property="Grid.Row" TargetName="ContentPanel" Value="0"/> <Setter Property="Height" TargetName="RowDefinition0" Value="*"/> <Setter Property="Height" TargetName="RowDefinition1" Value="Auto"/> </Trigger> <Trigger Property="TabStripPlacement" Value="Left"> <Setter Property="Grid.Row" TargetName="HeaderPanel" Value="0"/> <Setter Property="Grid.Row" TargetName="ContentPanel" Value="0"/> <Setter Property="Grid.Column" TargetName="HeaderPanel" Value="0"/> <Setter Property="Grid.Column" TargetName="ContentPanel" Value="1"/> <Setter Property="Width" TargetName="ColumnDefinition0" Value="Auto"/> <Setter Property="Width" TargetName="ColumnDefinition1" Value="*"/> <Setter Property="Height" TargetName="RowDefinition0" Value="*"/> <Setter Property="Height" TargetName="RowDefinition1" Value="0"/> </Trigger> <Trigger Property="TabStripPlacement" Value="Right"> <Setter Property="Grid.Row" TargetName="HeaderPanel" Value="0"/> <Setter Property="Grid.Row" TargetName="ContentPanel" Value="0"/> <Setter Property="Grid.Column" TargetName="HeaderPanel" Value="1"/> <Setter Property="Grid.Column" TargetName="ContentPanel" Value="0"/> <Setter Property="Width" TargetName="ColumnDefinition0" Value="*"/> <Setter Property="Width" TargetName="ColumnDefinition1" Value="Auto"/> <Setter Property="Height" TargetName="RowDefinition0" Value="*"/> <Setter Property="Height" TargetName="RowDefinition1" Value="0"/> </Trigger> <Trigger Property="IsEnabled" Value="False"> <Setter Property="TextElement.Foreground" TargetName="templateRoot" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Setter.Value> </Setter> </Style>