WPF LayoutTransform -改变布局

LayoutTransform会影响布局，让grid显示分割线时候，可以看出

<Window x:Class="wpf180709.Window1"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="Window1" Height="300" Width="300">
    <Grid ShowGridLines="True">
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="Auto"></ColumnDefinition>
            <ColumnDefinition></ColumnDefinition>
        </Grid.ColumnDefinitions>
        <TextBlock Text="Hello Transform" FontSize="20" HorizontalAlignment="Left" VerticalAlignment="Bottom">
            <TextBlock.LayoutTransform>
                <RotateTransform Angle="-90"></RotateTransform>
            </TextBlock.LayoutTransform>
        </TextBlock>
    </Grid>
</Window>