I have two xaml file one is MainWindow.xaml and other is userControl EditTaskView.xaml. In MainWindow.xaml it consists of listbox and when double clicked any item of listbox, it displays other window (edit window) from EditView userControl. I am trying to animate this userControl everytime whenever any item from the listbox is double clicked. I added some animation in userControl however the animation only gets run once. How can i make my animation run everytime whenever any item from the listbox is clicked?

 <ListBox x:Name="lstBxTask"   Style="{StaticResource ListBoxItems}" MouseDoubleClick="lstBxTask_MouseDoubleClick">
        <ListBox.ItemTemplate>               
            <DataTemplate>                    
                <StackPanel>
                    <Rectangle Style="{StaticResource LineBetweenListBox}"/>
                    <StackPanel Orientation="Horizontal">
                        <TextBlock Text="{Binding Taskname}"  Style="{StaticResource TextInListBox}"/>
                        <Button Name="btnDelete" Style="{StaticResource DeleteButton}" Click="btnDelete_Click"/>                                                      
                    </StackPanel>
                </StackPanel>                    
            </DataTemplate>
        </ListBox.ItemTemplate>
    </ListBox>  
    <ToDoTask:EditTaskView x:Name="EditTask" Grid.Row="1" Grid.RowSpan="2" Grid.ColumnSpan="2" Visibility="Collapsed"/>

In the MainWindow code, there is mouse double click event, which changes the visibility of EditTaskView to Visible.

Suggestions?