<Grid>

         <StackPanel HorizontalAlignment="Center"

                     VerticalAlignment="Center">

             <CheckBox Name="TestCheckBox"

                       Content="TestDataTriggerDemo"/>

             <TextBlock>

                 <TextBlock.Style>

                     <Style TargetType="TextBlock">

                         <Setter Property="Text" Value="Hello,这是测试！"/>

                         <Setter Property="FontSize" Value=""/>

                         <Style.Triggers>

                             <DataTrigger Binding="{Binding ElementName=TestCheckBox,Path=IsChecked}" Value="True">

                                 <Setter Property="Text" Value="Hi，你好！数据触发器成功！"/>

                                 <Setter Property="Foreground" Value="Blue"/>

                             </DataTrigger>

                         </Style.Triggers>

                     </Style>

                 </TextBlock.Style>

             </TextBlock>

         </StackPanel>

     </Grid>