从C#代码启动Storyboard [英] Start Storyboard from C# code

问题描述

我正在尝试从C#调用以xaml代码声明的情节提要:

I am trying to call a storyboard declared in xaml code from C#:

<Storyboard x:Key="BotRotation"  Duration="00:00:4" RepeatBehavior="Forever" >
            <DoubleAnimation BeginTime="0:0:0"
            Storyboard.TargetName="imageRotateTransformm"
            Storyboard.TargetProperty="ScaleX"
            From="1" To="-1"
            Duration="0:0:2"   
            />
            <DoubleAnimation
            BeginTime="0:0:2"
            Storyboard.TargetName="imageRotateTransformm"
            Storyboard.TargetProperty="ScaleX"
            From="-1" To="1"
            Duration="0:0:2"  
            />
        </Storyboard>
</Window.Resources>

此故事板应修改图像的ScaleX属性.图片声明:

This storyboard should modify the ScaleX property of image. Image Declaration:

<Image Name="uiRobotIcon" Height="64" Width="64" Source="/YoutubeTelegramAudio;component/imgs/ic_robot.png" RenderTransformOrigin="0.5,0.5">
            <Image.RenderTransform>
                <TransformGroup>
                    <ScaleTransform ScaleY="1" ScaleX="1" x:Name="imageRotateTransformm" />
                    <SkewTransform AngleY="0" AngleX="0" />
                    <RotateTransform Angle="0" />
                    <TranslateTransform/>
                </TransformGroup>
            </Image.RenderTransform>
        </Image>

然后，当我单击另一个按钮时，我想从C#启动此动画.谢谢.

Then, i want to start this animation from C# when i click another button. Thanks.

推荐答案

那很容易.只需找到 Resource ，将其转换为 Storyboard ，然后调用其

That's very easy. Just find the Resource, cast it to a Storyboard and then call its Begin() method:

Storyboard sb = (<YourNamespace>.Properties.Resources["BotRotation"] as Storyboard);
sb.Begin();

将上面的代码放在某个事件处理程序中，它应该可以正常工作.

Put the above code in some event handler and it should work fine.

在应用程序中声明情节提要的位置也很重要.如果它在 App.xaml 中，则别无其他担心，并且可能无法访问.但是我认为 Window.Resources 标记也可以包含可访问的资源.我现在无法测试:)

It also matters where in the application you declare the Storyboard. If it is in the App.xaml, then no worries but anywhere else, and it might be unaccessible. But I think the Window.Resources tag can also contain accessible resources. I can't test it right now :)

这篇关于从C#代码启动Storyboard的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！