CrosshairLegendElementBase.LineElement Property

Returns the crosshair line element settings.

Namespace: DevExpress.XtraCharts

Assembly: DevExpress.XtraCharts.v20.1.dll

Declaration

public CrosshairLineElement LineElement { get; }
Public ReadOnly Property LineElement As CrosshairLineElement

Property Value

Type Description
CrosshairLineElement

The object that contains the crosshair's line element settings.

Remarks

Use the LineElement property to customize the crosshair line appearance when you use the ChartControl.CustomDrawCrosshair event to customize the Crosshair Cursor's appearance.

Refer to the Crosshair Cursor document for more information.

Examples

This example demonstrates how to modify the Crosshair Cursor's appearance using the ChartControl.CustomDrawCrosshair event.

In this sample, crosshair content is displayed in a legend. For this, set the CrosshairOptions.ContentShowMode to the Legend value that the CrosshairContentShowMode enumeration contains. Note that you can specify the crosshair's content show mode for the specified series using the SeriesBase.CrosshairContentShowMode property.

Use the CustomDrawCrosshairEventArgs.CrosshairLegendElements property to obtain the crosshair legend elements' collection.

To customize crosshair legend element options, use the CrosshairLegendElement class properties:

private void Form1_Load(object sender, System.EventArgs e) {
    chartControl.CrosshairOptions.ContentShowMode = CrosshairContentShowMode.Legend;
    chartControl.CrosshairOptions.ShowValueLabels = true;
    chartControl.CrosshairOptions.ShowValueLine = true;
}
private void OnCustomDrawCrosshair(object sender, CustomDrawCrosshairEventArgs e) {
    foreach(CrosshairLegendElement legendElement in e.CrosshairLegendElements) {
        legendElement.TextColor = (legendElement.SeriesPoint.Values[0] > ColorSelectorValue) ? Color.Green : Color.Red;
        legendElement.LineElement.Color = legendElement.TextColor;
        legendElement.AxisLabelElement.BackColor = legendElement.TextColor;
    }
}
See Also