ArcGIS Pro 2.8 API Reference Guide
IsNullable Property (FieldDescription)

ArcGIS.Core.Data.DDL Namespace > FieldDescription Class : IsNullable Property
Indicates if the ArcGIS.Core.Data.Field can contain null values.
Syntax
public bool IsNullable {get; set;}
Public Property IsNullable As Boolean
Requirements

Target Platforms: Windows 10, Windows 8.1

See Also

Reference

FieldDescription Class
FieldDescription Members