<LinearGradientBrush x:Key="BrushPrincipalBorderBlue" EndPoint="1.3,1" StartPoint="-0.2,0">
<GradientStop Color="#FF030637" Offset="1"/>
<GradientStop Color="#FF0E0F31" Offset="0.166"/>
<GradientStop Color="#FF2E2F70" Offset="0.629"/>
<GradientStop Color="#FF030637" Offset="0.63"/>
</LinearGradientBrush>
<Storyboard x:Key="GoToBlue">
<ColorAnimation Storyboard.TargetName="border" Storyboard.TargetProperty="Background.GradientStops[3].Color" Duration="0:0:0.5"
To="{DynamicResource BrushPrincipalBorderBlue.GradientStops[3].Color}" />
</Storyboard>
我如何在'To'属性中设置我的画笔的GradientStop颜色?因为调用我称之为无效的方式。
答案 0 :(得分:0)
不确定你想做什么,但Offset是一个双数,因此你需要像这样使用DoubleAnimation:
<Canvas.Triggers>
<EventTrigger RoutedEvent="Canvas.Loaded">
<BeginStoryboard>
<Storyboard>
<DoubleAnimation
Storyboard.TargetName="BlackCanvasGradient"
Storyboard.TargetProperty="Offset"
From="0" To="0.8" Duration="0:0:2" >
</DoubleAnimation>
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</Canvas.Triggers>
答案 1 :(得分:0)
BrushPrincipalBorderBlue名称只是一个键,它不是一个实际的LinearGradientBrush因此它没有任何Propertys。我可以通过在Brush中添加一个名称来消除错误。看看它是否适合你。
<Window.Resources>
<LinearGradientBrush x:Name="myBrush" x:Key="BrushPrincipalBorderBlue" EndPoint="1.3,1" StartPoint="-0.2,0">
<GradientStop Color="#FF030637" Offset="1"/>
<GradientStop Color="#FF0E0F31" Offset="0.166"/>
<GradientStop Color="#FF2E2F70" Offset="0.629"/>
<GradientStop Color="#FF030637" Offset="0.63"/>
</LinearGradientBrush>
<Storyboard x:Key="GoToBlue">
<ColorAnimation Storyboard.TargetName="border" Storyboard.TargetProperty="Background.GradientStops[3].Color" Duration="0:0:0.5" To="{DynamicResource myBrush.GradientStops[3].Color}" />
</Storyboard>
我能够访问颜色的唯一方法是将它们分开定义,即
<Window.Resources>
<Color x:Key="BrushPrincipalBorderBlue.Color1">
<Color.A>#FF</Color.A>
<Color.B>#03</Color.B>
<Color.R>#06</Color.R>
<Color.G>#37</Color.G>
</Color>
<Color x:Key="BrushPrincipalBorderBlue.Color2">
<Color.A>#FF</Color.A>
<Color.B>#0E</Color.B>
<Color.R>#0F</Color.R>
<Color.G>#31</Color.G>
</Color>
<Color x:Key="BrushPrincipalBorderBlue.Color3">
<Color.A>#FF</Color.A>
<Color.B>#2E</Color.B>
<Color.R>#2F</Color.R>
<Color.G>#70</Color.G>
</Color>
<Color x:Key="BrushPrincipalBorderBlue.Color4">
<Color.A>#FF</Color.A>
<Color.B>#03</Color.B>
<Color.R>#06</Color.R>
<Color.G>#37</Color.G>
</Color>
<LinearGradientBrush x:Key="BrushPrincipalBorderBlue" EndPoint="1.3,1" StartPoint="-0.2,0">
<GradientStop Color="{DynamicResource BrushPrincipalBorderBlue.Color1}" Offset="1"/>
<GradientStop Color="{DynamicResource BrushPrincipalBorderBlue.Color2}" Offset="0.166"/>
<GradientStop Color="{DynamicResource BrushPrincipalBorderBlue.Color3}" Offset="0.629"/>
<GradientStop Color="{DynamicResource BrushPrincipalBorderBlue.Color4}" Offset="0.63"/>
</LinearGradientBrush>
<LinearGradientBrush x:Key="BrushPrincipalBorderOriginal" EndPoint="1.3,1" StartPoint="-0.2,0">
<GradientStop Color="#FFFFFFFF" Offset="1"/>
<GradientStop Color="#FFFFFFFF" Offset="0.166"/>
<GradientStop Color="#FFFFFFFF" Offset="0.629"/>
<GradientStop Color="#FFFFFFFF" Offset="0.63"/>
</LinearGradientBrush>
</Window.Resources>
<Grid Name="myGrid" Background="{DynamicResource BrushPrincipalBorderOriginal}" >
<Grid.Triggers>
<EventTrigger RoutedEvent="Canvas.Loaded">
<BeginStoryboard>
<Storyboard>
<ColorAnimation Storyboard.TargetName="myGrid" Storyboard.TargetProperty="Background.GradientStops[3].Color" Duration="0:0:2" To="{DynamicResource BrushPrincipalBorderBlue.Color3}" AutoReverse="True" RepeatBehavior="Forever"/>
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</Grid.Triggers>
</Grid>