wpf 如何修复键属性只能用于 IDictionary 中包含的元素
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时间：2020-09-13 10:48:55 来源:igfitidea点击:
How to fix key attribute can only be used on element that is Contained in IDictionary
提问by Sanath Shetty
how do i fix the Error the "Key" attribute can only be used on an element that is contained in "IDictionary".
如何修复错误“Key”属性只能用于包含在“IDictionary”中的元素。
<Window x:Class="WpfApplication9.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525">
<Grid>
<Grid
xmlns = "http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:system = "clr-namespace:System;assembly=mscorlib"
xmlns:x = "http://schemas.microsoft.com/winfx/2006/xaml">
<Grid.Resources>
<!-- Particle Styling -->
<SolidColorBrush x:Key = "ParticleColor" Color = "#006699"/>
<SolidColorBrush x:Key = "ParticleBackgroundColor" Color = "Transparent"/>
<system:Double x:Key = "ParticleOpacity">1</system:Double>
<system:Double x:Key = "ParticleRadius">5</system:Double>
<system:Double x:Key = "StartingPointX">0</system:Double>
<system:Double x:Key = "StartingPointY">-20</system:Double>
<system:Double x:Key = "RotationPointX">0.5</system:Double>
<system:Double x:Key = "RotationPointY">0.5</system:Double>
<!-- StoryBoard -->
<system:TimeSpan x:Key = "StoryBoardBeginTimeP0">00:00:00.000</system:TimeSpan>
<system:TimeSpan x:Key = "StoryBoardBeginTimeP1">00:00:00.100</system:TimeSpan>
<system:TimeSpan x:Key = "StoryBoardBeginTimeP2">00:00:00.200</system:TimeSpan>
<system:TimeSpan x:Key = "StoryBoardBeginTimeP3">00:00:00.300</system:TimeSpan>
<system:TimeSpan x:Key = "StoryBoardBeginTimeP4">00:00:00.400</system:TimeSpan>
<Duration x:Key = "StoryBoardDuration">00:00:01.800</Duration>
<!-- Particle Origin Angles -->
<system:Double x:Key = "ParticleOriginAngleP0">0</system:Double>
<system:Double x:Key = "ParticleOriginAngleP1">-10</system:Double>
<system:Double x:Key = "ParticleOriginAngleP2">-20</system:Double>
<system:Double x:Key = "ParticleOriginAngleP3">-30</system:Double>
<system:Double x:Key = "ParticleOriginAngleP4">-40</system:Double>
<!-- Particle Position & Timing 1 -->
<system:Double x:Key = "ParticleBeginAngle1">0</system:Double>
<system:Double x:Key = "ParticleEndAngle1">90</system:Double>
<system:TimeSpan x:Key = "ParticleBeginTime1">00:00:00.000</system:TimeSpan>
<Duration x:Key = "ParticleDuration1">00:00:00.750</Duration>
<!-- Particle Position & Timing 2 -->
<system:Double x:Key = "ParticleBeginAngle2">90</system:Double>
<system:Double x:Key = "ParticleEndAngle2">270</system:Double>
<system:TimeSpan x:Key = "ParticleBeginTime2">00:00:00.751</system:TimeSpan>
<Duration x:Key = "ParticleDuration2">00:00:00.300</Duration>
<!-- Particle Position & Timing 3 -->
<system:Double x:Key = "ParticleBeginAngle3">270</system:Double>
<system:Double x:Key = "ParticleEndAngle3">360</system:Double>
<system:TimeSpan x:Key = "ParticleBeginTime3">00:00:01.052</system:TimeSpan>
<Duration x:Key = "ParticleDuration3">00:00:00.750</Duration>
<Style x:Key = "EllipseStyle" TargetType = "Ellipse">
<Setter Property = "Width" Value = "{StaticResource ParticleRadius}"/>
<Setter Property = "Height" Value = "{StaticResource ParticleRadius}"/>
<Setter Property = "Fill" Value = "{StaticResource ParticleColor}"/>
<Setter Property = "RenderTransformOrigin" Value = "0.5, 0.5"/>
<Setter Property = "Opacity" Value = "{StaticResource ParticleOpacity}"/>
</Style>
</Grid.Resources>
<Canvas Width = "50" Height = "50">
<Canvas.Triggers>
<EventTrigger RoutedEvent = "Canvas.Loaded">
<EventTrigger.Actions>
<BeginStoryboard>
<Storyboard
x:Key = "MetroLoadingAnimation"
BeginTime = "{StaticResource StoryBoardBeginTimeP0}"
Duration = "{StaticResource StoryBoardDuration}"
RepeatBehavior = "Forever">
<DoubleAnimation
Storyboard.TargetName = "p0"
Storyboard.TargetProperty = "(UIElement.RenderTransform).(RotateTransform.Angle)"
From = "{StaticResource ParticleBeginAngle1}"
To = "{StaticResource ParticleEndAngle1}"
BeginTime = "{StaticResource ParticleBeginTime1}"
Duration = "{StaticResource ParticleDuration1}"/>
<DoubleAnimation
Storyboard.TargetName = "p0"
Storyboard.TargetProperty = "(UIElement.RenderTransform).(RotateTransform.Angle)"
From = "{StaticResource ParticleBeginAngle2}"
To = "{StaticResource ParticleEndAngle2}"
BeginTime = "{StaticResource ParticleBeginTime2}"
Duration = "{StaticResource ParticleDuration2}"/>
<DoubleAnimation
Storyboard.TargetName = "p0"
Storyboard.TargetProperty = "(UIElement.RenderTransform).(RotateTransform.Angle)"
From = "{StaticResource ParticleBeginAngle3}"
To = "{StaticResource ParticleEndAngle3}"
BeginTime = "{StaticResource ParticleBeginTime3}"
Duration = "{StaticResource ParticleDuration3}"/>
</Storyboard>
</BeginStoryboard>
<BeginStoryboard>
<Storyboard
x:Key = "MetroLoadingAnimation"
BeginTime = "{StaticResource StoryBoardBeginTimeP1}"
Duration = "{StaticResource StoryBoardDuration}"
RepeatBehavior = "Forever">
<DoubleAnimation
Storyboard.TargetName = "p1"
Storyboard.TargetProperty = "(UIElement.RenderTransform).(RotateTransform.Angle)"
From = "{StaticResource ParticleBeginAngle1}"
To = "{StaticResource ParticleEndAngle1}"
BeginTime = "{StaticResource ParticleBeginTime1}"
Duration = "{StaticResource ParticleDuration1}"/>
<DoubleAnimation
Storyboard.TargetName = "p1"
Storyboard.TargetProperty = "(UIElement.RenderTransform).(RotateTransform.Angle)"
From = "{StaticResource ParticleBeginAngle2}"
To = "{StaticResource ParticleEndAngle2}"
BeginTime = "{StaticResource ParticleBeginTime2}"
Duration = "{StaticResource ParticleDuration2}"/>
<DoubleAnimation
Storyboard.TargetName = "p1"
Storyboard.TargetProperty = "(UIElement.RenderTransform).(RotateTransform.Angle)"
From = "{StaticResource ParticleBeginAngle3}"
To = "{StaticResource ParticleEndAngle3}"
BeginTime = "{StaticResource ParticleBeginTime3}"
Duration = "{StaticResource ParticleDuration3}"/>
</Storyboard>
</BeginStoryboard>
<BeginStoryboard>
<Storyboard
x:Key = "MetroLoadingAnimation"
BeginTime = "{StaticResource StoryBoardBeginTimeP2}"
Duration = "{StaticResource StoryBoardDuration}"
RepeatBehavior = "Forever">
<DoubleAnimation
Storyboard.TargetName = "p2"
Storyboard.TargetProperty = "(UIElement.RenderTransform).(RotateTransform.Angle)"
From = "{StaticResource ParticleBeginAngle1}"
To = "{StaticResource ParticleEndAngle1}"
BeginTime = "{StaticResource ParticleBeginTime1}"
Duration = "{StaticResource ParticleDuration1}"/>
<DoubleAnimation
Storyboard.TargetName = "p2"
Storyboard.TargetProperty = "(UIElement.RenderTransform).(RotateTransform.Angle)"
From = "{StaticResource ParticleBeginAngle2}"
To = "{StaticResource ParticleEndAngle2}"
BeginTime = "{StaticResource ParticleBeginTime2}"
Duration = "{StaticResource ParticleDuration2}"/>
<DoubleAnimation
Storyboard.TargetName = "p2"
Storyboard.TargetProperty = "(UIElement.RenderTransform).(RotateTransform.Angle)"
From = "{StaticResource ParticleBeginAngle3}"
To = "{StaticResource ParticleEndAngle3}"
BeginTime = "{StaticResource ParticleBeginTime3}"
Duration = "{StaticResource ParticleDuration3}"/>
</Storyboard>
</BeginStoryboard>
<BeginStoryboard>
<Storyboard
x:Key = "MetroLoadingAnimation"
BeginTime = "{StaticResource StoryBoardBeginTimeP3}"
Duration = "{StaticResource StoryBoardDuration}"
RepeatBehavior = "Forever">
<DoubleAnimation
Storyboard.TargetName = "p3"
Storyboard.TargetProperty = "(UIElement.RenderTransform).(RotateTransform.Angle)"
From = "{StaticResource ParticleBeginAngle1}"
To = "{StaticResource ParticleEndAngle1}"
BeginTime = "{StaticResource ParticleBeginTime1}"
Duration = "{StaticResource ParticleDuration1}"/>
<DoubleAnimation
Storyboard.TargetName = "p3"
Storyboard.TargetProperty = "(UIElement.RenderTransform).(RotateTransform.Angle)"
From = "{StaticResource ParticleBeginAngle2}"
To = "{StaticResource ParticleEndAngle2}"
BeginTime = "{StaticResource ParticleBeginTime2}"
Duration = "{StaticResource ParticleDuration2}"/>
<DoubleAnimation
Storyboard.TargetName = "p3"
Storyboard.TargetProperty = "(UIElement.RenderTransform).(RotateTransform.Angle)"
From = "{StaticResource ParticleBeginAngle3}"
To = "{StaticResource ParticleEndAngle3}"
BeginTime = "{StaticResource ParticleBeginTime3}"
Duration = "{StaticResource ParticleDuration3}"/>
</Storyboard>
</BeginStoryboard>
<BeginStoryboard>
<Storyboard
x:Key = "MetroLoadingAnimation"
BeginTime = "{StaticResource StoryBoardBeginTimeP4}"
Duration = "{StaticResource StoryBoardDuration}"
RepeatBehavior = "Forever">
<DoubleAnimation
Storyboard.TargetName = "p4"
Storyboard.TargetProperty = "(UIElement.RenderTransform).(RotateTransform.Angle)"
From = "{StaticResource ParticleBeginAngle1}"
To = "{StaticResource ParticleEndAngle1}"
BeginTime = "{StaticResource ParticleBeginTime1}"
Duration = "{StaticResource ParticleDuration1}"/>
<DoubleAnimation
Storyboard.TargetName = "p4"
Storyboard.TargetProperty = "(UIElement.RenderTransform).(RotateTransform.Angle)"
From = "{StaticResource ParticleBeginAngle2}"
To = "{StaticResource ParticleEndAngle2}"
BeginTime = "{StaticResource ParticleBeginTime2}"
Duration = "{StaticResource ParticleDuration2}"/>
<DoubleAnimation
Storyboard.TargetName = "p4"
Storyboard.TargetProperty = "(UIElement.RenderTransform).(RotateTransform.Angle)"
From = "{StaticResource ParticleBeginAngle3}"
To = "{StaticResource ParticleEndAngle3}"
BeginTime = "{StaticResource ParticleBeginTime3}"
Duration = "{StaticResource ParticleDuration3}"/>
</Storyboard>
</BeginStoryboard>
</EventTrigger.Actions>
</EventTrigger>
</Canvas.Triggers>
<Border
x:Name = "p0"
Background = "{StaticResource ParticleBackgroundColor}"
Opacity = "{StaticResource ParticleOpacity}">
<Border.RenderTransform>
<RotateTransform/>
</Border.RenderTransform>
<Border.RenderTransformOrigin>
<Point X = "{StaticResource RotationPointX}" Y = "{StaticResource RotationPointY}"/>
</Border.RenderTransformOrigin>
<Ellipse Style = "{StaticResource EllipseStyle}">
<Ellipse.RenderTransform>
<TransformGroup>
<TranslateTransform X = "{StaticResource StartingPointX}" Y = "{StaticResource StartingPointY}"/>
<RotateTransform Angle = "{StaticResource ParticleOriginAngleP0}"/>
</TransformGroup>
</Ellipse.RenderTransform>
</Ellipse>
</Border>
<Border
x:Name = "p1"
Background = "{StaticResource ParticleBackgroundColor}"
Opacity = "{StaticResource ParticleOpacity}">
<Border.RenderTransform>
<RotateTransform/>
</Border.RenderTransform>
<Border.RenderTransformOrigin>
<Point X = "{StaticResource RotationPointX}" Y = "{StaticResource RotationPointY}"/>
</Border.RenderTransformOrigin>
<Ellipse Style = "{StaticResource EllipseStyle}">
<Ellipse.RenderTransform>
<TransformGroup>
<TranslateTransform X = "{StaticResource StartingPointX}" Y = "{StaticResource StartingPointY}"/>
<RotateTransform Angle = "{StaticResource ParticleOriginAngleP1}"/>
</TransformGroup>
</Ellipse.RenderTransform>
</Ellipse>
</Border>
<Border
x:Name = "p2"
Background = "{StaticResource ParticleBackgroundColor}"
Opacity = "{StaticResource ParticleOpacity}">
<Border.RenderTransform>
<RotateTransform/>
</Border.RenderTransform>
<Border.RenderTransformOrigin>
<Point X = "{StaticResource RotationPointX}" Y = "{StaticResource RotationPointY}"/>
</Border.RenderTransformOrigin>
<Ellipse Style = "{StaticResource EllipseStyle}">
<Ellipse.RenderTransform>
<TransformGroup>
<TranslateTransform X = "{StaticResource StartingPointX}" Y = "{StaticResource StartingPointY}"/>
<RotateTransform Angle = "{StaticResource ParticleOriginAngleP2}"/>
</TransformGroup>
</Ellipse.RenderTransform>
</Ellipse>
</Border>
<Border
x:Name = "p3"
Background = "{StaticResource ParticleBackgroundColor}"
Opacity = "{StaticResource ParticleOpacity}">
<Border.RenderTransform>
<RotateTransform/>
</Border.RenderTransform>
<Border.RenderTransformOrigin>
<Point X = "{StaticResource RotationPointX}" Y = "{StaticResource RotationPointY}"/>
</Border.RenderTransformOrigin>
<Ellipse Style = "{StaticResource EllipseStyle}">
<Ellipse.RenderTransform>
<TransformGroup>
<TranslateTransform X = "{StaticResource StartingPointX}" Y = "{StaticResource StartingPointY}"/>
<RotateTransform Angle = "{StaticResource ParticleOriginAngleP3}"/>
</TransformGroup>
</Ellipse.RenderTransform>
</Ellipse>
</Border>
<Border
x:Name = "p4"
Background = "{StaticResource ParticleBackgroundColor}"
Opacity = "{StaticResource ParticleOpacity}">
<Border.RenderTransform>
<RotateTransform/>
</Border.RenderTransform>
<Border.RenderTransformOrigin>
<Point X = "{StaticResource RotationPointX}" Y = "{StaticResource RotationPointY}"/>
</Border.RenderTransformOrigin>
<Ellipse Style = "{StaticResource EllipseStyle}">
<Ellipse.RenderTransform>
<TransformGroup>
<TranslateTransform X = "{StaticResource StartingPointX}" Y = "{StaticResource StartingPointY}"/>
<RotateTransform Angle = "{StaticResource ParticleOriginAngleP4}"/>
</TransformGroup>
</Ellipse.RenderTransform>
</Ellipse>
</Border>
</Canvas>
</Grid>
</Grid>
回答by Rohit Vats
As error stated you can only set x:Keyattribute on elements which exist in resourceDictionary and not on elements outside dictionary.
正如错误所述，您只能x:Key在 resourceDictionary 中存在的元素上设置属性，而不能在 dictionary 之外的元素上设置属性。
<Storyboard x:Key = "MetroLoadingAnimation">
Remove x:Keyfrom storyboard and instead set x:Name.
x:Key从故事板中删除并设置x:Name.
<Storyboard x:Name = "MetroLoadingAnimation">
