ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.CIM Namespace / CIMProfileGrid Class / GridSymbol Property

GridSymbol Property
Gets or sets the line Symbol for the major grid lines.
Syntax
public CIMSymbolReference GridSymbol {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.2 or higher.
See Also