WPF 控件绑定另外一个控件的属性

     <Grid Grid.Row="0">
            <Slider Name="SliderName" Grid.Row="0" VerticalAlignment="Center" 
                 Minimum="10"
                 Maximum="24"
                 Value="10" 
                 ToolTip="{Binding ElementName=SliderName,Path=Value}"   
                 Style="{DynamicResource SliderStyleHint}">
            </Slider>
        </Grid>

        <Grid Grid.Row="1">
            <TextBlock  Grid.Row="1" 
                    HorizontalAlignment="Center" 
                    VerticalAlignment="Center"
                    FontSize="{Binding ElementName=SliderName,Path=Value}">
            SliderBindingText
            </TextBlock>
        </Grid>