BootstrapPolarChartBarSeries.ValueErrorBar Property

Configures error bars for numeric axes.

Namespace: DevExpress.Web.Bootstrap

Assembly: DevExpress.Web.Bootstrap.v21.2.dll


public BootstrapChartValueErrorBarSettings ValueErrorBar { get; }

Property Value

Type Description

An object of the BootstrapChartValueErrorBarSettings class.


Error bars are used on charts to indicate an error or an uncertainty in a reported measurement. They give a general idea of how precise a measurement is.

In Polar Chart, an error bar is a vertical bar with two marks at its edges. An error bar accompanies a series point. Error bars can be generated either from concrete or calculated values. To generate one error bar, two values, high and low, are needed. If the data source of your chart provides concrete high and low values, assign the required data source fields to the BootstrapChartValueErrorBarSettings.HighValueField and BootstrapChartValueErrorBarSettings.LowValueField properties.

Alternatively, you can calculate the high and low error bar values automatically. For this purpose, choose one of error bar types (BootstrapChartValueErrorBarSettings.Type) and specify the value (BootstrapChartValueErrorBarSettings.Value) to be used in calculation.

See Also