ArcGIS Pro 2.6 API Reference Guide
EnvelopeBuilder Class
Members 

ArcGIS.Core.Geometry Namespace : EnvelopeBuilder Class
Builder for creating an envelope.
Object Model
EnvelopeBuilder ClassMapPoint ClassCoordinate2D StructureEnvelopeBuilder ClassEnvelope ClassEnvelope ClassEnvelope ClassEnvelope ClassEnvelope ClassSpatialReference ClassEnvelope ClassEnvelope Class
Syntax
Public NotInheritable Class EnvelopeBuilder 
   Inherits ArcGIS.Core.Geometry.GeometryBuilder(Of Envelope)
   Implements System.IDisposable 
Remarks
An envelope is an axis-aligned box described by the coordinates of the lower left corner and the coordinates of the upper right corner.

Use the EnvelopeBuilder class to to create and/or modify an Envelope shape. An Envelope is based upon the parent Geometry class. The Geometry class is immutable which means that you can not change its shape once it is created. Hence, the EnvelopeBuilder provides the way to make changes when working with an Envelope. Use the EnvelopeBuilder.ToGeometry method to get the Envelope geometry from the builder.

Inheritance Hierarchy

System.Object
   ArcGIS.Core.CoreObjectsBase
      ArcGIS.Core.Geometry.GeometryBuilder<T>
         ArcGIS.Core.Geometry.EnvelopeBuilder

Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 7

See Also

Reference

EnvelopeBuilder Members
ArcGIS.Core.Geometry Namespace