--- title: "How to: Add an Animation Output Value to an Animation Starting Value" ms.date: "03/30/2017" helpviewer_keywords: - "animation [WPF]" ms.assetid: b89a82be-b03d-481e-a8d3-cc513d09ca00 --- # How to: Add an Animation Output Value to an Animation Starting Value This example shows how to add an animation output value to an animation starting value. ## Example The property specifies whether you want the output value of an animation added to the starting value (base value) of an animated property. You can use the property with most basic animations and most key frame animations. For more information, see [Animation Overview](animation-overview.md) and [Key-Frame Animations Overview](key-frame-animations-overview.md). The following example shows the effect of using the property with and using the property with . [!code-xaml[timingbehaviors_snip#IsAdditiveWholePage](~/samples/snippets/csharp/VS_Snippets_Wpf/timingbehaviors_snip/CSharp/IsAdditiveExample.xaml#isadditivewholepage)] ## See also - [Accumulate Animation Values During Repeat Cycles](how-to-accumulate-animation-values-during-repeat-cycles.md) - [Animation Overview](animation-overview.md) - [Key-Frame Animations Overview](key-frame-animations-overview.md) - [Animation and Timing How-to Topics](animation-and-timing-how-to-topics.md)