WebChartControl.CrosshairEnabled Property
Gets or sets a value that specifies whether or not a crosshair cursor is enabled for a chart.
Namespace: DevExpress.XtraCharts.Web
Assembly: DevExpress.XtraCharts.v18.2.Web.dll
Declaration
[DefaultValue(DefaultBoolean.Default)]
public DefaultBoolean CrosshairEnabled { get; set; }Property Value
| Type | Default | Description |
|---|---|---|
| DefaultBoolean | **Default** | Default - a crosshair cursor’s state (enabled/disabled) is automatically determined according to the type of a diagram currently displayed on a chart; True - a crosshair cursor is enabled for a chart; False - a crosshair cursor is disabled. |
Available values:
| Name | Description |
|---|---|
| True | Corresponds to a Boolean value of true. |
| False | Corresponds to a Boolean value of false. |
| Default | The value is determined by the current object’s parent object setting (e.g., a control setting). |
Remarks
Use the CrosshairEnabled property to activate (deactivate) a crosshair cursor at the level of a chart.
After that, it becomes possible to customize the crosshair cursor’s appearance and position on a diagram via the WebChartControl.CrosshairOptions property.
The following image shows the enabled crosshair cursor with the CrosshairOptions.ShowArgumentLabels, CrosshairOptions.ShowValueLabels, CrosshairOptions.ShowArgumentLine and CrosshairOptions.ShowValueLine set to true.
You can also change the content of crosshair labels, via the Axis2D.CrosshairLabelPattern and SeriesBase.CrosshairLabelPattern properties.
To learn more about the crosshair cursor, see the Crosshair Cursor topic.
Example
This example shows how to enable the Crosshair Cursor and configure its settings.
The following API members are used:
| Member | Description |
|---|---|
WebChartControl.CrosshairEnabled |
Gets or sets the value that specifies whether the Crosshair Cursor is enabled for a chart. |
| CrosshairOptions.ContentShowMode | Gets or sets the element that displays the Crosshair’s content. |
| CrosshairOptions.ShowValueLabels | Gets or sets the value that specifies whether to show a value label for a series point the Crosshair Cursor highlights. |
| CrosshairOptions.ShowValueLine | Specifies whether to show a value line for a series point the Crosshair Cursor highlights. |
| CrosshairOptions.CrosshairLabelMode | Specifies the value that defines how to show the Crosshair Cursor’s label for a series. |
webChartControl.CrosshairEnabled = DevExpress.Utils.DefaultBoolean.True;
webChartControl.CrosshairOptions.ContentShowMode = CrosshairContentShowMode.Label;
webChartControl.CrosshairOptions.CrosshairLabelMode = CrosshairLabelMode.ShowForNearestSeries;
webChartControl.CrosshairOptions.ShowArgumentLabels = true;
webChartControl.CrosshairOptions.ShowArgumentLine = true;
webChartControl.CrosshairOptions.ShowValueLabels = true;
webChartControl.CrosshairOptions.ShowValueLine = true;