ArcGIS Pro 2.7 API Reference Guide
ProgressDialog Class
Members 

ArcGIS.Desktop.Framework.Threading.Tasks Namespace : ProgressDialog Class
Provides visual feedback during long operations
Syntax
public class ProgressDialog : System.IDisposable  
Public Class ProgressDialog 
   Implements System.IDisposable 
Inheritance Hierarchy

System.Object
   ArcGIS.Desktop.Framework.Threading.Tasks.ProgressDialog

Requirements

Target Platforms: Windows 10, Windows 8.1

See Also

Reference

ProgressDialog Members
ArcGIS.Desktop.Framework.Threading.Tasks Namespace