SeriesPoint3DDataSourceAdapter.CalculatedFields Property
Returns a collection of calculated fields.
Namespace: DevExpress.Xpf.Charts
Assembly: DevExpress.Xpf.Charts.v24.1.dll
NuGet Package: DevExpress.Wpf.Charts
Declaration
Property Value
Type | Description |
---|---|
ChartCalculatedFieldCollection | A collection that stores calculated fields. |
Remarks
Calculated fields allow you to evaluate values based on an expression and use them as a data source for series arguments,values, tooltips, crosshair labels, and so on.
To add a calculated field to a Chart3D Control, add a ChartCalculatedField object to the adapter’s CalculatedFields collection and specify its parameters.
Example
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: [X] * [Y].
<dxc:Chart3DControl AspectRatio="1 1 0.5">
<dxc:Chart3DControl.DataContext>
<local:ChartViewModel/>
</dxc:Chart3DControl.DataContext>
<dxc:Series3DStorage>
<dxc:Series3D DisplayName="Series"
CrosshairLabelPattern="X: {X:f1}
Y: {Y:f1}
Value: {V}">
<dxc:Series3D.View>
<dxc:Point3DSeriesView/>
</dxc:Series3D.View>
<dxc:SeriesPoint3DDataSourceAdapter DataSource="{Binding DataPoints}"
XArgumentDataMember="X"
YArgumentDataMember="Y"
ValueDataMember="Value">
<dxc:SeriesPoint3DDataSourceAdapter.CalculatedFields>
<dxc:ChartCalculatedField Expression="[X]*[Y]"
FieldName="Value"
FieldType="Double"/>
</dxc:SeriesPoint3DDataSourceAdapter.CalculatedFields>
</dxc:SeriesPoint3DDataSourceAdapter>
</dxc:Series3D>
</dxc:Series3DStorage>
</dxc:Chart3DControl>