Enlarge Button In Xaml
<UserControl x:Class='SilverlightApplication3.MainPage' xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation' xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml' xmlns:d='http://schemas.microsoft.com/expression/blend/2008' xmlns:mc='http://schemas.openxmlformats.org/markup-compatibility/2006' mc:Ignorable='d' d:DesignWidth='640' d:DesignHeight='480'> <Button FontSize="12" HorizontalAlignment="Center" VerticalAlignment="Center"> Expanding Button <Button.Triggers> <EventTrigger RoutedEvent="Button.Click"> <BeginStoryboard> <Storyboard TargetProperty="FontSize"> <DoubleAnimation From="12" To="48" Duration="0:0:2" FillBehavior="Stop" /> </Storyboard> </BeginStoryboard> </EventTrigger> </Button.Triggers> </Button> </UserControl>