我正在尝试使用WPF图表工具包设置自定义工具提示。使用here中的演示代码。自定义工具提示的代码如下所示（抱歉详细）：
<Grid>
<Grid.Resources>
<Style
x:Key="MyScatterDataPointStyle"
TargetType="chartingToolkit:ScatterDataPoint">
<Setter Property="Background" Value="Green"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="chartingToolkit:ScatterDataPoint">
<Border
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}"
Opacity="0"
x:Name="Root">
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualStateGroup.Transitions>
<VisualTransition GeneratedDuration="0:0:0.1"/>
</VisualStateGroup.Transitions>
<VisualState x:Name="Normal"/>
<VisualState x:Name="MouseOver">
<Storyboard>
<DoubleAnimation
Storyboard.TargetName="MouseOverHighlight"
Storyboard.TargetProperty="Opacity"
To="0.6"
Duration="0"/>
</Storyboard>
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="SelectionStates">
<VisualStateGroup.Transitions>
<VisualTransition GeneratedDuration="0:0:0.1"/>
</VisualStateGroup.Transitions>
<VisualState x:Name="Unselected"/>
<VisualState x:Name="Selected">
<Storyboard>
<DoubleAnimation
Storyboard.TargetName="SelectionHighlight"
Storyboard.TargetProperty="Opacity"
To="0.6"
Duration="0"/>
</Storyboard>
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="RevealStates">
<VisualStateGroup.Transitions>
<VisualTransition GeneratedDuration="0:0:0.5"/>
</VisualStateGroup.Transitions>
<VisualState x:Name="Shown">
<Storyboard>
<DoubleAnimation
Storyboard.TargetName="Root"
Storyboard.TargetProperty="Opacity"
To="1"
Duration="0"/>
</Storyboard>
</VisualState>
<VisualState x:Name="Hidden">
<Storyboard>
<DoubleAnimation
Storyboard.TargetName="Root"
Storyboard.TargetProperty="Opacity"
To="0"
Duration="0"/>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Grid
Background="{TemplateBinding Background}">
<Rectangle>
<Rectangle.Fill>
<LinearGradientBrush>
<GradientStop
Color="#77ffffff"
Offset="0"/>
<GradientStop
Color="#00ffffff"
Offset="1"/>
</LinearGradientBrush>
</Rectangle.Fill>
</Rectangle>
<Border
BorderBrush="#ccffffff"
BorderThickness="1">
<Border
BorderBrush="#77ffffff"
BorderThickness="1"/>
</Border>
<Rectangle x:Name="SelectionHighlight" Fill="Red" Opacity="0"/>
<Rectangle x:Name="MouseOverHighlight" Fill="White" Opacity="0"/>
</Grid>
<ToolTipService.ToolTip>
<StackPanel>
<ContentControl
Content="Custom ToolTip"
FontWeight="Bold"/>
<ContentControl
Content="{TemplateBinding FormattedDependentValue}"/>
</StackPanel>
</ToolTipService.ToolTip>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Grid.Resources>
我绑定的“数据”是一个字典，因此DependentValuePath =“Value.X”和IndependentValuePath =“Value.Y”。
我的图表代码如下所示：
<chartingToolkit:Chart Name="MyChart">
<chartingToolkit:Chart.Series>
<chartingToolkit:ScatterSeries
ItemsSource="{Binding Data}"
DependentValuePath="Value.X"
IndependentValuePath="Value.Y"
DataPointStyle="{StaticResource MyScatterDataPointStyle}">
<chartingToolkit:ScatterSeries.IndependentAxis>
<chartingToolkit:LinearAxis Name="XAxis" Title="Area Under ROC Curve" Orientation="X" Minimum="0" />
</chartingToolkit:ScatterSeries.IndependentAxis>
<chartingToolkit:ScatterSeries.DependentRangeAxis>
<chartingToolkit:LinearAxis Name="YAxis" Title="Calibration Error" Orientation="Y" Minimum="0" />
</chartingToolkit:ScatterSeries.DependentRangeAxis>
</chartingToolkit:ScatterSeries>
</chartingToolkit:Chart.Series>
</chartingToolkit:Chart>
我希望工具提示的格式为String.Format（“{0}：{1}，{2}”，Key，Value.X，Value.Y）; （即钥匙跟着价值）。知道怎么做吗？目前工具提示只显示相关值。
答案 0 :(得分：1)
我认为这个问题有你想要的答案 WPF toolkit charting : Customize datapoint label
基本上，您希望在ToolTipService.ToolTip声明中添加更多条目
<ToolTipService.ToolTip>
<StackPanel>
<ContentControl
Content="Custom ToolTip"
FontWeight="Bold"/>
<ContentControl
Content="{TemplateBinding Key}"/><!--I am not sure what the correct property will be Key is a guess-->
<ContentControl
Content="{TemplateBinding IndependentValue}"/>
<ContentControl
Content="{TemplateBinding DependentValue}"/>
</StackPanel>
</ToolTipService.ToolTip>