ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Core.Geometry Namespace / GeographicTransformationListEntry Class / Wkid Property
Example Version

Wkid Property (GeographicTransformationListEntry)
Gets the well-known ID of the geographic transformation.
Syntax
public int Wkid {get;}
Example
Retrieve system geographic transformations
// a geographic transformation is the definition of how to project from one spatial reference to another
IReadOnlyList<GeographicTransformationListEntry> list = GeometryEngine.Instance.GetPredefinedGeographicTransformationList();

// a GeographicTransformationListEntry consists of Name, Wkid, the From SpatialReference Wkid, the To SpatialReference Wkid
GeographicTransformationListEntry entry = list[0];

int fromWkid = entry.FromSRWkid;
int toWkid = entry.ToSRWkid;
int wkid = entry.Wkid;
string name = entry.Name;
Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.
See Also