title: How to play Storyboard in ViewModel?
body: <p>I defiend a storyborad in View</p>
  
  <pre><code>  &lt;Storyboard x:Key="ExpandAdd" &gt;
              &lt;ObjectAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="AddUsers" Storyboard.TargetProperty="(UIElement.Visibility)"&gt;
                  &lt;DiscreteObjectKeyFrame KeyTime="00:00:00" Value="{x:Static Visibility.Collapsed}"/&gt;
                  &lt;DiscreteObjectKeyFrame KeyTime="00:00:00.3000000" Value="{x:Static Visibility.Visible}"/&gt;
              &lt;/ObjectAnimationUsingKeyFrames&gt;
              &lt;DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="DetailBorder" Storyboard.TargetProperty="(UIElement.Opacity)"&gt;
                  &lt;SplineDoubleKeyFrame KeyTime="00:00:00" Value="1"/&gt;
                  &lt;SplineDoubleKeyFrame KeyTime="00:00:00.3000000" Value="0.4"/&gt;
              &lt;/DoubleAnimationUsingKeyFrames&gt;
              &lt;BooleanAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="DetailBorder" Storyboard.TargetProperty="(UIElement.IsEnabled)"&gt;
                  &lt;DiscreteBooleanKeyFrame KeyTime="00:00:00" Value="False"/&gt;
              &lt;/BooleanAnimationUsingKeyFrames&gt;
          &lt;/Storyboard&gt;
  </code></pre>
  
  <p>I have a button and bind to a relaycommand .</p>
  
  <pre><code>&lt;Button x:Name="AddUserButton"  Content="اضافه"&gt;
     &lt;i:Interaction.Triggers&gt;
        &lt;i:EventTrigger EventName="Click"&gt;
          &lt;cmd:EventToCommand Command="{Binding AddUsers}"/&gt;
        &lt;/i:EventTrigger&gt;
     &lt;/i:Interaction.Triggers&gt;
  &lt;/Button&gt;
  </code></pre>
  
  <p>I want to play storyboard when RelayCommand(AddUsers) is execute.</p>