ChartHitTest Enum

Lists the values that identify a chart’s elements.

Namespace: DevExpress.XtraCharts

Assembly: DevExpress.XtraCharts.v20.1.dll

NuGet Packages: DevExpress.Charts, DevExpress.WindowsDesktop.Charts

Declaration

C#

public enum ChartHitTest

VB.NET

Public Enum ChartHitTest

Members

Name	Description
None	The test point does not belong to any visual element or is outside the chart.
Chart	The test point belongs to a chart.
ChartTitle	The test point belongs to a chart title.
Axis	The test point belongs to an axis.
ConstantLine	The test point belongs to a constant line.
Diagram	The test point belongs to a diagram.
Legend	The test point belongs to a legend.
Series	The test point belongs to a series.
SeriesLabel	The test point belongs to a series label.
SeriesTitle	The test point belongs to a series title.
NonDefaultPane	The test point belongs to a non-default pane.
TrendLine	Obsolete. The test point belongs to a trend line.
FibonacciIndicator	Obsolete. The test point belongs to a Fibonacci Indicator.
RegressionLine	Obsolete. The test point belongs to a regression line.
Annotation	The test point belongs to an annotation.
Indicator	The test point belongs to an indicator.

Related API Members

The following properties accept/return ChartHitTest values:

• ChartHitInfo.HitTest

Remarks

The ChartHitTest enumeration’s values are returned by the ChartHitInfo.HitTest property of a ChartHitInfo object. Note, that ChartHitInfo objects can be created by calling the chart’s ChartControl.CalcHitInfo method.

Example

The following examples demonstrates how to handle the ChartControl.MouseMove event and calculate the hit information for the point which the mouse pointer is currently hovering over. Then, the name of the chart element located under the mouse pointer is shown within the form caption.

C#

using System.Windows.Forms;
using DevExpress.XtraCharts;
// ...

private void chartControl1_MouseMove(object sender, MouseEventArgs e) {
    ChartHitInfo hi = chartControl1.CalcHitInfo(new System.Drawing.Point(e.X, e.Y));
    this.Text = hi.HitTest.ToString();
}

VB.NET

Imports System.Windows.Forms
Imports DevExpress.XtraCharts
' ...

Private Sub ChartControl1_MouseMove(ByVal sender As System.Object, ByVal e As MouseEventArgs) _
Handles ChartControl1.MouseMove
    Dim hi As ChartHitInfo = ChartControl1.CalcHitInfo(New System.Drawing.Point(e.X, e.Y))
    Me.Text = hi.HitTest.ToString()
End Sub