绑定资源

1.将元素绑定到一起

　　上一章 拉条改变字体大小就是了

2.绑定到非元素对象

    <Window.Resources>
        <FontFamily x:Key="CustomFont">Calibri</FontFamily>
    </Window.Resources>
    <Grid>
        <StackPanel Name="StackPanel1">
            <!--获取窗体字体样式-->
            <TextBlock Height="auto" Text="{Binding Source={x:Static SystemFonts.IconFontFamily},Path=Source}"></TextBlock>
            <!--获取自定义资源-->
            <TextBlock Height="auto" Text="{Binding Source={StaticResource CustomFont},Path=Source}"></TextBlock>
            <!--获取指定父级元素的属性-->
            <TextBlock Height="auto" Text="{Binding Path=Name,RelativeSource={RelativeSource Mode=FindAncestor,AncestorType={x:Type StackPanel},AncestorLevel=1}}"></TextBlock>
        </StackPanel>
    </Grid>