Animation In Style
<Window x:Class="Animation.AnimationInStyle" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="AnimationInStyle" Height="300" Width="300"> <Window.Resources> <Style x:Key="GrowButtonStyle"> <Style.Triggers> <Trigger Property="Button.IsPressed" Value="True"> <Trigger.EnterActions> <BeginStoryboard> <Storyboard> <DoubleAnimation Storyboard.TargetProperty="Width" To="250" Duration="0:0:5"></DoubleAnimation> </Storyboard> </BeginStoryboard> </Trigger.EnterActions> </Trigger> </Style.Triggers> </Style> </Window.Resources> <Button Padding="10" Name="cmdGrow" Height="40" Width="160" Style="{StaticResource GrowButtonStyle}" HorizontalAlignment="Center" VerticalAlignment="Center"> Click and Make Me Grow </Button> </Window>