我正在使用 WPF 工具包(http://www.codeproject.com/Articles/196502/WPF-Toolkit-Charting-Controls-Line-Bar-Area-Pie-Co)来创建折线图。
这就是我正在做的事情:
<Window x:Class="TempDataAnalyzer.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" xmlns:chartingToolkit="clr-namespace:System.Windows.Controls.DataVisualization.Charting;assembly=System.Windows.Controls.DataVisualization.Toolkit" Loaded="Window_Loaded">
<Grid>
<chartingToolkit:Chart Name="lineChart" Title="Temperature" VerticalAlignment="Stretch" HorizontalAlignment="Stretch">
<chartingToolkit:LineSeries DependentValuePath="Value" IndependentValuePath="Key" ItemsSource="{Binding}" IsSelectionEnabled="True"/>
</chartingToolkit:Chart>
</Grid>
</Window>
C#:
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
private void Window_Loaded(object sender, RoutedEventArgs e)
{
List<KeyValuePair<int, int>> entries = new List<KeyValuePair<int, int>>();
entries.Add(new KeyValuePair<int, int>(0, 0));
entries.Add(new KeyValuePair<int, int>(1, 23));
entries.Add(new KeyValuePair<int, int>(2, 45));
entries.Add(new KeyValuePair<int, int>(3, 46));
entries.Add(new KeyValuePair<int, int>(4, 71));
lineChart.DataContext = entries;
}
}
我需要在指定的 Y 值处绘制一条“目标线”,例如在本例中为 35:
我怎样才能做到这一点?