wpf请教

Question

请问下面是什么问题导致的？比人新手，网多多指教 ↖(^ω^)↗发生了未处理的异常：
“System.Windows.Media.Animation.ColorAnimationUsingKeyFrames”动画对象不能用于动画属性“RuntimeEffect”，因为它是不兼容的类型“System.Windows.Media.Effects.Effect”。
   在 System.Windows.Media.Animation.Storyboard.VerifyAnimationIsValid(DependencyProperty targetProperty, AnimationClock animationClock)
   在 System.Windows.Media.Animation.Storyboard.ProcessComplexPath(HybridDictionary clockMappings, DependencyObject targetObject, PropertyPath path, AnimationClock animationClock, HandoffBehavior handoffBehavior, Int64 layer)
   在 System.Windows.Media.Animation.Storyboard.ClockTreeWalkRecursive(Clock currentClock, DependencyObject containingObject, INameScope nameScope, DependencyObject parentObject, String parentObjectName, PropertyPath parentPropertyPath, HandoffBehavior handoffBehavior, HybridDictionary clockMappings, Int64 layer)
   在 System.Windows.Media.Animation.Storyboard.ClockTreeWalkRecursive(Clock currentClock, DependencyObject containingObject, INameScope nameScope, DependencyObject parentObject, String parentObjectName, PropertyPath parentPropertyPath, HandoffBehavior handoffBehavior, HybridDictionary clockMappings, Int64 layer)
   在 System.Windows.Media.Animation.Storyboard.BeginCommon(DependencyObject containingObject, INameScope nameScope, HandoffBehavior handoffBehavior, Boolean isControllable, Int64 layer)
   在 System.Windows.VisualStateGroup.StartNewThenStopOld(FrameworkElement element, Storyboard[] newStoryboards)
   在 System.Windows.VisualStateManager.GoToStateInternal(FrameworkElement control, FrameworkElement stateGroupsRoot, VisualStateGroup group, VisualState state, Boolean useTransitions)
   在 System.Windows.VisualStateManager.GoToStateCommon(FrameworkElement control, FrameworkElement stateGroupsRoot, String stateName, Boolean useTransitions)
   在 System.Windows.VisualStateManager.GoToState(FrameworkElement control, String stateName, Boolean useTransitions)
   在 System.Windows.Controls.Primitives.ButtonBase.ChangeVisualState(Boolean useTransitions)
   在 System.Windows.Controls.Control.UpdateVisualState(Boolean useTransitions)
   在 System.Windows.Controls.Control.OnPostApplyTemplate()
   在 System.Windows.FrameworkElement.ApplyTemplate()
   在 Microsoft.Expression.Platform.WPF.WpfViewNodeManager.EnsureElementInDictionary(Object root, ViewNode knownAncestor)

Answer 1

<Style x:Key="ButtonFocusVisual">
<Setter Property="Control.Template">
<Setter.Value>
<ControlTemplate>
<Rectangle Margin="2" SnapsToDevicePixels="true" Stroke="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}" StrokeThickness="1" StrokeDashArray="1 2"/>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<LinearGradientBrush x:Key="ButtonNormalBackground" EndPoint="0,1" StartPoint="0,0">
<GradientStop Color="#F3F3F3" Offset="0"/>
<GradientStop Color="#EBEBEB" Offset="0.5"/>
<GradientStop Color="#DDDDDD" Offset="0.5"/>
<GradientStop Color="#CDCDCD" Offset="1"/>
</LinearGradientBrush>
<SolidColorBrush x:Key="ButtonNormalBorder" Color="#FF707070"/>
<Style x:Key="ButtonStyle_Main" TargetType="{x:Type Button}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Grid>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualStateGroup.Transitions>
<VisualTransition From="Normal" GeneratedDuration="0:0:0.5" To="MouseOver"/>
<VisualTransition From="MouseOver" GeneratedDuration="0:0:0.2" To="Normal"/>
<VisualTransition From="MouseOver" GeneratedDuration="0:0:0.1" To="Pressed"/>
<VisualTransition From="Pressed" GeneratedDuration="0:0:0.1" To="MouseOver"/>
</VisualStateGroup.Transitions>
<VisualState x:Name="Normal">
<Storyboard>
<ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Effect).(DropShadowEffect.Color)" Storyboard.TargetName="ellipse">
<EasingColorKeyFrame KeyTime="0" Value="#FFFFFA00"/>
</ColorAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Effect).(DropShadowEffect.Direction)" Storyboard.TargetName="ellipse">
<EasingDoubleKeyFrame KeyTime="0" Value="125"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="MouseOver">
<Storyboard>
<ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(Shape.Stroke).(SolidColorBrush.Color)" Storyboard.TargetName="ellipse">
<EasingColorKeyFrame KeyTime="0" Value="#FFE4EA9F"/>
</ColorAnimationUsingKeyFrames>
<ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Effect).(DropShadowEffect.Color)" Storyboard.TargetName="ellipse">
<EasingColorKeyFrame KeyTime="0" Value="#FFBFE20E"/>
</ColorAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Pressed">
<Storyboard>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Effect).(DropShadowEffect.Opacity)" Storyboard.TargetName="ellipse">
<EasingDoubleKeyFrame KeyTime="0" Value="0"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Disabled"/>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Ellipse x:Name="ellipse" Margin="8" Stroke="#FFECFF00">
<Ellipse.Effect>
<DropShadowEffect/>
</Ellipse.Effect>
<Ellipse.Fill>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.905,-0.215">
<GradientStop Color="#FFFFEE00" Offset="0"/>
<GradientStop Color="#FFA2E40E" Offset="1"/>
</LinearGradientBrush>
</Ellipse.Fill>
</Ellipse>
<ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsFocused" Value="True"/>
<Trigger Property="IsDefaulted" Value="True"/>
<Trigger Property="IsMouseOver" Value="True"/>
<Trigger Property="IsPressed" Value="True"/>
<Trigger Property="IsEnabled" Value="False"/>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>就是这样一个style.......

Answer 2

我试了一下，可以编译可以运行，在Designer里会有针对RuntimeEffect的Exception
和你确认一下现象