从另一个UserControl后面的代码启动UserControl Storyboard

Question

有没有办法从另一个UserControl（Child）后面的代码访问UserControl（Parent）Storyboard。我有一个UserControl（父用户控件），其中包含另一个UserControl（子用户控件）。父用户控件有一个由父用户控件使用的故事板，现在，我想从子用户控件后面的代码开始播放该故事板。有没有办法实现这一目标。以下是示例代码：

家长用户控制：

    <UserControl.Resources>
        <Storyboard x:Key="sbShowEditLetter">
            <DoubleAnimation 
											Storyboard.TargetName="grdOptions"
											Storyboard.TargetProperty="(FrameworkElement.Opacity)" 
											From="0" To="10" 
											Duration="0:0:5">
            </DoubleAnimation>
            <DoubleAnimation
                                                Storyboard.TargetName="grdOptions"
											    Storyboard.TargetProperty="(FrameworkElement.Width)" 
											    From="0" To="420" 
											    Duration="0">
            </DoubleAnimation>
        </Storyboard>
    </UserControl.Resources>

                        <Button x:Name="btnAdd" Content="Add ...">
                            <Button.Triggers>
                                <EventTrigger RoutedEvent="ButtonBase.Click">
                                    <BeginStoryboard Storyboard="{StaticResource sbShowEditLetter}">
                                    </BeginStoryboard>
                                </EventTrigger>
                            </Button.Triggers>
                        </Button>
       

儿童用户控制：

    private void dgLetters_MouseDoubleClick(object sender, MouseButtonEventArgs e)
    {
        FrameworkElement originalSender = e.OriginalSource as FrameworkElement;
        if (originalSender != null)
        {
            var row = originalSender.ParentOfType<GridViewRow>();
            if (row != null)
            {

                //access Parent User Control Storyboard
                Storyboard sb = this.FindResource("sbShowEditLetter") as Storyboard;
                sb.Begin();
            }
        }
    }

Answer 1

我能够解决问题，这里是更新的代码：

＆＃13;

＆＃13;

        private void dgLetters_MouseDoubleClick(object sender, MouseButtonEventArgs e)
        {
            FrameworkElement originalSender = e.OriginalSource as FrameworkElement;
            if (originalSender != null)
            {
                var row = originalSender.ParentOfType<GridViewRow>();
                if (row != null)
                {

                    DependencyObject ucParent = this.Parent;

                    while (!(ucParent is UserControl))
                    {
                        ucParent = LogicalTreeHelper.GetParent(ucParent);
                    }

                    MainWindow2 parentUserControl = (MainWindow2) ucParent;
                    parentUserControl.vm.ExecuteEdit();

                    Storyboard sb = this.FindResource("sbShowEditLetter") as Storyboard;
                    sb.Begin();
                }
            }
        }

＆＃13;

＆＃13;

＆＃13;