ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.CIM Namespace / CIMBlueprintEffect Class / GridSize Property

GridSize Property (CIMBlueprintEffect)
Gets or sets the size of the background grid in points.
Syntax
public double GridSize {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 3.0 or higher.
See Also