调用从C＃在XAML中声明的故事板 [英] Call a storyboard declared in xaml from c#

问题描述

我试图调用从C＃在XAML中声明的故事板。

I am trying to call a storyboard declared in xaml from c#.

<UserControl.Resources>
    <Storyboard x:Name="PlayStoryboard" x:Key="PlayAnimation">
        ...

我没有从codebehind文件获得PlayStoryboard。任何想法我做错了吗？

I dont have access to "PlayStoryboard" from the codebehind file. Any ideas what i am doing wrong?

推荐答案

既然你宣布你的故事板作为一种资源，可以通过使用FindResource（PlayAnimation）访问它。见下面的示例：

Since you declared your Storyboard as a Resource, you can access it by using FindResource("PlayAnimation"). See sample below:

XAML：

<Window x:Class="StackOverflow.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:local="clr-namespace:StackOverflow"
        Title="MainWindow" Height="350" Width="525">
    <Window.Resources>
        <Storyboard x:Key="PlayAnimation" Storyboard.TargetProperty="(Canvas.Left)">
            <DoubleAnimation From="0" To="100" Duration="0:0:1"/>
        </Storyboard>
    </Window.Resources>

    <Canvas>
        <Button x:Name="btn">Test</Button>
    </Canvas>
</Window>

code-背后：

Code-behind:

public partial class MainWindow : Window
{
    public MainWindow()
    {
        InitializeComponent();
        this.Loaded += new RoutedEventHandler(MainWindow_Loaded);
    }

    void MainWindow_Loaded(object sender, RoutedEventArgs e)
    {
        Storyboard sb = this.FindResource("PlayAnimation") as Storyboard;
        Storyboard.SetTarget(sb, this.btn);
        sb.Begin();
    }
}

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