Take a look at the following XAML:

    <Grid Name="mainGrid">

        <Grid Margin="17,20,132,130" Name="grid1">

            <Button Height="23" Margin="10,10,44,0" Name="button1" VerticalAlignment="Top">Button</Button>

        </Grid>

        <Grid Height="98" Margin="118,0,12,17" Name="grid2" VerticalAlignment="Bottom">

            <Button Height="23" Margin="10,10,63,0" Name="button2" VerticalAlignment="Top">Button</Button>

        </Grid>

    </Grid>

Supposing we want to achieve such effect that button1 is on top of button2, we have two options:

1. We can select button1, and move to the top of button2.
2. We can also resize button1much larger so that its bottom right is on button2's bottom right; then, resize on top left.

Is there any differences in resulting XAML?

The answer is: Move will change button1's Parent, yet Resize won't.

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