指定 WPF 图表的最小和最大轴
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Specify minimum and maximum axis for WPF chart
提问by David
This is a seemingly simple question but I cannot find a simple answer. I want to specify the minimum and maximum for the existing Y axis on the chart.
这是一个看似简单的问题，但我找不到简单的答案。我想为图表上现有的 Y 轴指定最小值和最大值。
Here's the chart:
这是图表：
<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>
Now, I'm adding values ranging between 0 to 71 on the Y axis:
现在，我在 Y 轴上添加 0 到 71 之间的值：
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;
}
}
However, I want the chart Y axis to show me a range between 0 and 100, regardless of what values I add. This is to keep it consistent with different charts on the same page.
但是，我希望图表 Y 轴显示 0 到 100 之间的范围，而不管我添加什么值。这是为了与同一页面上的不同图表保持一致。
回答by MarcinJuraszek
Add this XAMLcode inside your Chartdeclaration:
将此XAML代码添加到您的Chart声明中：
<chartingToolkit:Chart.Axes>
<chartingToolkit:LinearAxis Orientation="Y" Minimum="0" Maximum="100"/>
</chartingToolkit:Chart.Axes>
