wpf/Silverlight/wp中如何绑定模板中的属性

  <Style  TargetType="{x:Type TabItem}" x:Key="EditorTabItemStyle">
        <Setter  Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type TabItem}">
                    <Border x:Name="layout" BorderBrush="Gray" BorderThickness="1,1,1,0" Background="{TemplateBinding Background}"
                                CornerRadius="3" Margin="2,0,2,0">
                        <Grid Height="20">
                            <Grid.ColumnDefinitions>
                                <ColumnDefinition/>
                                <ColumnDefinition Width="25"/>
                            </Grid.ColumnDefinitions>
                            <TextBlock TextAlignment="Center" Text="{TemplateBinding Header}" ToolTip="{TemplateBinding ToolTip}" Tag="{TemplateBinding Tag}" Grid.Column="0" Margin="4,0,3,0"
                            VerticalAlignment="Center" HorizontalAlignment="Center">
                                <TextBlock.ContextMenu>
                                    <ContextMenu DataContext="{TemplateBinding Tag}">
                                        <MenuItem Header="保存"  Click="Save_Command" IsEnabled="{Binding RelativeSource={RelativeSource FindAncestor,AncestorType={x:Type ContextMenu},AncestorLevel=1},Path=DataContext}" >
                                        </MenuItem>
                                        <MenuItem Header="关闭"  Click="Close_Command">
                                        </MenuItem>
                                    </ContextMenu>
                                </TextBlock.ContextMenu>
                            </TextBlock>
                            <Button Content="X" Grid.Column="1"  Height="8" Width="8" Margin="4,1,3,2" 
                            Tag="{TemplateBinding Header}" 
                            Click="Button_Click"
                            Background="{x:Null}" BorderBrush="{x:Null}" VerticalAlignment="Center">
                                <Button.Template>
                                    <ControlTemplate >
                                        <Grid>
                                            <Rectangle>
                                                <Rectangle.Fill>
                                                    <VisualBrush>
                                                        <VisualBrush.Visual>
                                                            <Path x:Name="btnPath" 
                                                        Data="M0 0L10 10M0 10L10 0" Stroke="Gray"
                                                        StrokeThickness="1"/>
                                                        </VisualBrush.Visual>
                                                    </VisualBrush>
                                                </Rectangle.Fill>
                                            </Rectangle>
                                        </Grid>
                                        <ControlTemplate.Triggers>
                                            <Trigger Property="IsMouseOver" Value="True">
                                                <Setter TargetName="btnPath" Property="Stroke" Value="Red"/>
                                            </Trigger>
                                        </ControlTemplate.Triggers>
                                    </ControlTemplate>
                                </Button.Template>
                            </Button>
                        </Grid>
                    </Border>
                    <ControlTemplate.Triggers>
                        <Trigger Property="IsSelected" Value="True">
                            <Setter Property="Background" Value="White"/>
                            <Setter TargetName="layout" Property="Margin" Value="2,0,2,-1.5"/>
                        </Trigger>
                        <Trigger Property="IsSelected" Value="false">
                            <Setter Property="Background" Value="LightBlue"/>
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

上面实例代码展示如何将tabitem中的字段绑定到menuitem上,先通过TemplateBinding获取属性值赋值到DataContext属性，然后再通过指定的控件类型和第几个来绑定

IsEnabled="{Binding RelativeSource={RelativeSource FindAncestor,AncestorType={x:Type ContextMenu},AncestorLevel=1},Path=DataContext}" >

具体说明可以参考：

http://www.cnblogs.com/lzhp/archive/2012/09/11/2673810.html

中的2.9的说明