我对彩色动画有疑问。这是我的来源:
<Window.Resources>
<hedit:BrushToColorConverter x:Key="BrushToColorConverter" />
<Style x:Key="MyButtonStyle" TargetType="Button">
<Setter Property="OverridesDefaultStyle" Value="True"/>
<Setter Property="Margin" Value="5"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<ControlTemplate.Resources>
<Storyboard x:Key="buttonAnimIn">
<!-- Problem line -->
<ColorAnimation Storyboard.TargetName="bntBack" Storyboard.TargetProperty="Color" To="{Binding Path=Foreground, RelativeSource={RelativeSource AncestorType={x:Type UserControl}}, Converter={StaticResource BrushToColorConverter}}" />
</Storyboard>
<Storyboard x:Key="buttonAnimOut">
<ColorAnimation Storyboard.TargetName="bntBack" Storyboard.TargetProperty="Color" To="Blue" />
</Storyboard>
<Storyboard x:Key="buttonAnimForegroundIn">
<ColorAnimation Storyboard.TargetName="btnFore" Storyboard.TargetProperty="Color" To="Blue" />
</Storyboard>
<Storyboard x:Key="buttonAnimForegroundOut">
<ColorAnimation Storyboard.TargetName="btnFore" Storyboard.TargetProperty="Color" To="Red" />
</Storyboard>
</ControlTemplate.Resources>
<Border Name="border"
BorderThickness="1"
Padding="4,2"
BorderBrush="DarkGray"
CornerRadius="3">
<Border.Background>
<SolidColorBrush Color="Blue" x:Name="bntBack" />
</Border.Background>
<ContentControl HorizontalAlignment="Center" VerticalAlignment="Center" Content="{TemplateBinding Content}">
<ContentControl.Foreground>
<SolidColorBrush Color="Red" x:Name="btnFore" />
</ContentControl.Foreground>
</ContentControl >
</Border>
<ControlTemplate.Triggers>
<EventTrigger RoutedEvent="Button.MouseEnter">
<BeginStoryboard Storyboard="{StaticResource buttonAnimIn}" />
<BeginStoryboard Storyboard="{StaticResource buttonAnimForegroundIn}" />
</EventTrigger>
<EventTrigger RoutedEvent="Button.MouseLeave">
<BeginStoryboard Storyboard="{StaticResource buttonAnimOut}" />
<BeginStoryboard Storyboard="{StaticResource buttonAnimForegroundOut}" />
</EventTrigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Window.Resources>
问题是:
无法将“Style”属性中的值转换为“System.Windows.Style”类型的对象。无法卡住此 Storyboard时间线树以供跨线程使用。标记文件“HLSLEditor;component/mainwindow.xaml”第 223 行位置 25 中的对象“System.Windows.Controls.Button”出错。
当使用固定颜色时它可以工作,但它不能与父级的前景色一起工作...
如何为前景色或背景色制作动画?
谢谢!
最佳答案
您不能卡住绑定(bind),您可以通过将颜色声明为资源然后在动画中使用 StaticResource 时将控件的背景绑定(bind)到它来解决这个问题。
例如
<Window.Background>
<SolidColorBrush Color="{DynamicResource Background}"/>
</Window.Background>
<Window.Resources>
<Color x:Key="Background">Green</Color>
</Window.Resources>
<ColorAnimation Storyboard.TargetProperty="Foreground.Color"
Duration="0:0:1"
To="{StaticResource Background}"/>
使用资源类的替代方法:
public static class MyColors
{
public static Color MyHighlightColor = Color.FromArgb(255, 0, 88, 0);
}
<ColorAnimation Storyboard.TargetProperty="Foreground.Color"
Duration="0:0:1"
To="{x:Static local:MyColors.MyHighlightColor}"/>
关于c# - ControlTemplate Storyboard 颜色动画问题,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/5667987/