ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Core.CIM Namespace / CIMMap Class / DatumTransforms Property
Example Version

DatumTransforms Property
Gets or sets the set of geographic transformations used by the map for spatial references that do not have vertical coordinate system.
Syntax
public CIMDatumTransform[] DatumTransforms {get; set;}
Example
Datum
var cimMapDefinition = MapView.Active.Map.GetDefinition();
// use if map's sr does not have a vertical coordinate system
var datumTransformations = cimMapDefinition.DatumTransforms;
// use if map's sr has a vertical coordinate system
var hvDatumTransformations = cimMapDefinition.HVDatumTransforms;
Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.
See Also