[英]Changing the scale of Rectangle using storyboard
我想使用情节提要更改Rectangle的比例,但我不知道为什么它不起作用。 期待任何人的回复! C#代码为:
Storyboard sb = new Storyboard();
InitializeComponent();
DoubleAnimation daScaleX = new DoubleAnimation();
daScaleX.From = 1;
daScaleX.To = 2;
daScaleX.Duration = TimeSpan.FromSeconds(3);
DoubleAnimation daScaleY = new DoubleAnimation();
daScaleY.From = 1;
daScaleY.To = 2;
daScaleY.Duration = TimeSpan.FromSeconds(3);
BounceEase easing = new BounceEase()
{
EasingMode = EasingMode.EaseOut
};
daScaleX.EasingFunction = easing;
daScaleY.EasingFunction = easing;
Storyboard.SetTargetProperty(daScaleX, new PropertyPath("ScaleX"));
Storyboard.SetTarget(daScaleX, st);
Storyboard.SetTargetProperty(daScaleY, new PropertyPath("ScaleY"));
Storyboard.SetTarget(daScaleY, st);
sb.Children.Add(daScaleX);
sb.Children.Add(daScaleY);
sb.Begin();
XAML文件是:
<Grid>
<StackPanel>
<Rectangle x:Name="rect" Fill="Blue" Width="200" Height="40" Margin="5" RenderTransformOrigin="0.5,0.5">
<Rectangle.RenderTransform>
<TransformGroup>
<ScaleTransform x:Name="st" ScaleX="1" ScaleY="1" />
</TransformGroup>
</Rectangle.RenderTransform>
</Rectangle>
</StackPanel>
</Grid>
单独尝试以下代码..对我有用
<Grid>
<StackPanel>
<Rectangle x:Name="rect" Fill="Blue" Width="200" Height="40" Margin="5" RenderTransformOrigin="0.5,0.5">
<Rectangle.RenderTransform>
<ScaleTransform x:Name="st" ScaleX="1.0" ScaleY="1.0"></ScaleTransform>
</Rectangle.RenderTransform>
</Rectangle>
</StackPanel>
</Grid>
并在Windows加载事件上执行了此动画
void MainWindow_Loaded(object sender, RoutedEventArgs e)
{
Storyboard sb = new Storyboard();
DoubleAnimation daScaleX = new DoubleAnimation();
daScaleX.From = 1;
daScaleX.To = 2;
daScaleX.Duration = TimeSpan.FromMilliseconds(300);
DoubleAnimation daScaleY = new DoubleAnimation();
daScaleY.From = 1;
daScaleY.To = 2;
daScaleY.Duration = TimeSpan.FromMilliseconds(300);
BounceEase easing = new BounceEase()
{
EasingMode = EasingMode.EaseOut
};
daScaleX.EasingFunction = easing;
daScaleY.EasingFunction = easing;
Storyboard.SetTargetProperty(daScaleX, new PropertyPath("RenderTransform.ScaleX"));
Storyboard.SetTarget(daScaleX, rect);
Storyboard.SetTargetProperty(daScaleY, new PropertyPath("RenderTransform.ScaleY"));
Storyboard.SetTarget(daScaleY, rect);
sb.Children.Add(daScaleX);
sb.Children.Add(daScaleY);
sb.Begin();
}
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