It's very basic XAML knowlege.

&lt;Grid&gt;
    &lt;Grid.ColumnDefinitions&gt;
    &lt;ColumnDefinition Width="*"/&gt;
    &lt;ColumnDefinition Width="Auto"/&gt;
    &lt;ColumnDefinition Width="*"/&gt;
    &lt;/Grid.ColumnDefinitions&gt;
    &lt;Grid.RowDefinitions&gt;
    &lt;RowDefinition Height="*"/&gt;
    &lt;RowDefinition Height="Auto"/&gt;
    &lt;RowDefinition Height="*"/&gt;
    &lt;/Grid.RowDefinitions&gt;


// Grid.Row="1" Grid.Column="1" - your grid with Login/Password. Use VerticalAligment="Center", HorizontalAligment="Center" 

// Grid.Row="2" Grid.Column="2" - your register button. Use VerticalAligment="Bottom", HorizontalAligment="Right"

&lt;/Grid&gt;


Personally I'll recomment you to place "Register" button as link under "Login" button.

Windows Store Metro APP how to adapt to screen size
KTM Duke 200 which has an engine of 200 cc, and, on the other hand, Royal Enfield Bullet 350 with a 345 cc engine. I.e. Enfield has 150 cc more than the Duke. But KTM produces 25 BHP of power, whereas Enfield only 19 BHP. How is it so?

Form WikiPedia:


  Brake horsepower (bhp) is the measure of an engine’s horsepower before the loss in power caused by the gearbox, alternator, differential, water pump, and other auxiliary components


So it’s not gear box or final drive that makes it more powerful.
