This blog page will end up being a series.  Here I will discuss what happened to certain features and elements of WPF and Visual Studio.

Anchor

In Windows Forms we used Anchoring to allow a control to stretch while a form is resized.

<Frame  HorizontalAlignment="Stretch" Name="frame1" VerticalAlignment="Stretch"  VerticalContentAlignment="Stretch" 
 Margin="177,0,0,0" HorizontalContentAlignment="Stretch" />

One caveat is that by default the controls have a Width and Height property. When you set the Alignment and ContentAlignment properties to stretch you must remove the Width and Height properties from the XAML or you will end up with a centered control that does not stretch.