我在应用程序启动时使用过渡动画。

<Storyboard x:Key="InTransition">
            <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="ContentGrid" Storyboard.TargetProperty="(UIElement.Opacity)">
                <SplineDoubleKeyFrame KeyTime="00:00:00" Value="0"/>
                <SplineDoubleKeyFrame KeyTime="00:00:05" Value="0"/>
                <SplineDoubleKeyFrame KeyTime="00:00:05.5000000" Value="1"/>
            </DoubleAnimationUsingKeyFrames>
            <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="ContentGrid" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.Y)">
                <SplineDoubleKeyFrame KeyTime="00:00:00" Value="-72"/>
                <SplineDoubleKeyFrame KeyTime="00:00:05" Value="-157"/>
                <SplineDoubleKeyFrame KeySpline="0.5,0,0.5,1" KeyTime="00:00:05.5000000" Value="0"/>
            </DoubleAnimationUsingKeyFrames>
</Storyboard>


如果我将其作为EventTrigger RoutedEvent="FrameworkElement.Loaded"启动,则效果很好,但是我想将其绑定到viewModel上名为IsInitialized的属性。问题是Windows.Triggers不允许DataTrigger

我怎样才能做到这一点?

最佳答案

您是正确的,您不能在DataTrigger集合中使用Triggers。相反,您需要使用UIElement.Style.Triggers集合。然后,您可以使用DataTrigger.EnterActions元素托管Storyboard元素:

<Window ...>
    <Window.Style>
        <Style>
            <Style.Triggers>
                <DataTrigger Binding="{Binding YourProperty}" Value="True">
                    <DataTrigger.EnterActions>
                        <BeginStoryboard>
                            <Storyboard ... />
                        </BeginStoryboard>
                    </DataTrigger.EnterActions>
                </DataTrigger>
            </Style.Triggers>
        </Style>
    </Window.Style>
</Window>

关于c# - DataTrigger WPF上的BeginStorybard,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/22409177/

10-13 04:59