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copied!<p>I did this by a using DataTrigger and binding it to a property in my ViewModel. When the "FlashingBackGround" property gets set to "ON" the Storyboard animation starts.</p> <p>Also make sure to include in your project a reference to "Microsoft.Expression.Interactions"</p> <p>XAML: (this goes directly in the root node)</p> <pre><code><Window xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity" xmlns:ei="http://schemas.microsoft.com/expression/2010/interactions" x:Name="window" > ... <i:Interaction.Triggers> <ei:DataTrigger Binding="{Binding FlashingBackground, Mode=OneWay}" Value="ON"> <ei:ControlStoryboardAction Storyboard="{StaticResource MyAnimation}" ControlStoryboardOption="Play"/> </ei:DataTrigger> </i:Interaction.Triggers> ... </Window> </code></pre> <p>ViewModel:</p> <pre><code> private void TurnOnFlashingBackround() { FlashingBackground = "ON"; } private string _FlashingBackround = "OFF"; public string FlashingBackground { get { return _FlashingBackround; } private set { if (FlashingBackground == value) { return; } _FlashingBackround = value; this.OnPropertyChanged("FlashingBackground"); } } public new event PropertyChangedEventHandler PropertyChanged; private void OnPropertyChanged(string propertyName) { if (this.PropertyChanged != null) { this.PropertyChanged(this, new PropertyChangedEventArgs(propertyName)); } } </code></pre> <p>Finally, the Viewmodel must inherit from "INotifyPropertyChanged"</p>

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