ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.Data Namespace / Table Class / GetCount Method

GetCount Method (Table)
Overload List
OverloadDescription
Gets the count of how many rows are currently in this Table. This method must be called on the MCT. Use QueuedTask.Run.  
Gets the count of how many rows are currently in this Table that satisfy the criteria set in the queryFilter. This method must be called on the MCT. Use QueuedTask.Run.  
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.1 or higher.
See Also