ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Desktop.Mapping Namespace / PieChartRendererDefinition Class / FieldName Property
Version

FieldName Property (PieChartRendererDefinition)
Gets and sets the field name to use in determining the overall size of the pie chart (per feature)
Syntax
public string FieldName {get; set;}
Remarks
Corresponds to SizeOption of PieChartSizeOptions.Field otherwise it is ignored. If FieldName is not specified for PieChartSizeOptions.Field then the first eligible field in the underlying dataset is used.
Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.
See Also