ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Desktop.Core Namespace / Project Class / YMax Property

YMax Property (Project)
Gets the maximum value along the y-axis for the item's minimum bounding rectangle
Syntax
public double YMax {get;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.3 or higher.
See Also