ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Core.Data.DDL Namespace / FieldDescription Class / IsNullable Property
Version

IsNullable Property (FieldDescription)
Indicates if the ArcGIS.Core.Data.Field can contain null values.
Syntax
public bool IsNullable {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.
See Also