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    copied!<p>I realized hides the border in such a way:</p> <p>Style:</p> <pre><code>&lt;Style x:Key="NotificationStyle" TargetType="{x:Type Border}"&gt; &lt;Style.Triggers&gt; &lt;Trigger Property="Visibility" Value="Visible"&gt; &lt;Trigger.EnterActions&gt; &lt;BeginStoryboard&gt; &lt;Storyboard&gt; &lt;DoubleAnimation Storyboard.TargetProperty="Opacity" BeginTime="0:0:0" From="0.0" To="1.0" Duration="0:0:1.0" /&gt; &lt;DoubleAnimation Storyboard.TargetProperty="Opacity" BeginTime="0:0:5" From="1.0" To="0.0" Duration="0:0:1.0" /&gt; &lt;/Storyboard&gt; &lt;/BeginStoryboard&gt; &lt;/Trigger.EnterActions&gt; &lt;/Trigger&gt; &lt;/Style.Triggers&gt; &lt;/Style&gt; </code></pre> <p>Grid:</p> <pre><code>&lt;Grid&gt; &lt;Border Name="MyBorder" Width="100" Visibility="Hidden" Height="50" BorderThickness="2" BorderBrush="OrangeRed" Style="{StaticResource NotificationStyle}"&gt; &lt;TextBlock Text="Some information" TextAlignment="Center" VerticalAlignment="Center" /&gt; &lt;/Border&gt; &lt;ToggleButton Name="MyButton" Content="Show border" Width="100" Height="30" VerticalAlignment="Bottom" Click="Button_Click" /&gt; &lt;/Grid&gt; </code></pre> <p>In code:</p> <pre><code>private void Button_Click(object sender, RoutedEventArgs e) { if (MyButton.IsChecked == true) { MyBorder.Visibility = System.Windows.Visibility.Visible; } if (MyButton.IsChecked == false) { MyBorder.Visibility = System.Windows.Visibility.Hidden; } } </code></pre> <p>From his experiments I understood that if the property was once used in animation, then working with it is only possible from the animation-triggers. Accordingly, the access code of the property I have not received. </p> <p>Besides, then the control's used Visibility=Collapsed, he it does not receive messages from the system and the animation will not work. Although a property "Hidden" should take messages, but I have not worked as well as animation, so in example I used <strong>opacity</strong>.</p>
 

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