Try this in your Xaml…
<Button VerticalAlignment="Center" HorizontalAlignment="Center" Margin="5" Height="30" />
If Intellisense is doing its job, your actual key-strokes were
<Bu <tab> ve <tab> c <tab> ho <tab> c <tab> ma <tab> 5 <hunt for right arrow, hit arrow, fingers back on keyboard> he <tab> 30 <repeat hunt for right arrow>
Today, with a little help from a friend, I fixed that by opening Tools->Options->Environment
->Keyboard and entering the letters lineend into the search box.
Click on Edit.LineEnd, type Control-semicolon into the Shortcut keys entry box, and press the button Assign.
Presto! control-semicolon is now a synonym for “go to the end of the line” and I’ve cut the time it takes to fill in values in Xaml significantly.