All docs
V20.1
20.2 (EAP/Beta)
20.1
19.2
The page you are viewing does not exist in version 19.2. This link will take you to the root page.
19.1
The page you are viewing does not exist in version 19.1. This link will take you to the root page.
18.2
The page you are viewing does not exist in version 18.2. This link will take you to the root page.
18.1
The page you are viewing does not exist in version 18.1. This link will take you to the root page.
17.2
The page you are viewing does not exist in version 17.2. This link will take you to the root page.

ChartCalculatedField.FieldType Property

Gets or sets the type of calculated field values.

Namespace: DevExpress.Xpf.Charts

Assembly: DevExpress.Xpf.Charts.v20.1.dll

Declaration

public ChartCalculatedFieldType FieldType { get; set; }
Public Property FieldType As ChartCalculatedFieldType

Property Value

Type
ChartCalculatedFieldType

Remarks

The FieldType property specifies the type of values (Boolean, DateTime, String, etc.) a calculated field returns after its expression is evaluated. The ChartCalculatedFieldType enumeration lists the available types.

Examples

The following example shows how to create a calculated field and then use this field as a data source for a series. The field's values are calculated by the following expression: [Time.Seconds] * [Velocity].

<dxc:ChartControl x:Name="chartControl">
    <dxc:ChartControl.DataContext>
        <local:ChartViewModel/>
    </dxc:ChartControl.DataContext>
    <dxc:ChartControl.CalculatedFields>
        <dxc:ChartCalculatedField FieldName="Displacement" 
                                  Expression="[Time.Seconds] * [Velocity]" 
                                  FieldType="Double"/>
    </dxc:ChartControl.CalculatedFields>
    <dxc:XYDiagram2D>
        <dxc:SplineSeries2D DisplayName="Series" 
                            DataSource="{Binding DataPoints}"
                            ArgumentDataMember="Time"
                            ValueDataMember="Displacement" 
                            CrosshairLabelPattern="{}{Displacement:f1}" 
                            MarkerVisible="True"/>
        ...
    </dxc:XYDiagram2D>
</dxc:ChartControl>
See Also