xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" x:Class="Microsoft.Samples.Graphics.RectangleExample" WindowTitle="Example"> > This is rotating text Storyboard.TargetName="MyRotateTransform" Storyboard.TargetProperty="(RotateTransform.Angle)" From="0.0" To="360" Duration="0:0:10" RepeatBehavior="Forever" />