ArcGIS Pro 2.7 API Reference Guide
IsEqual(Envelope) Method
Example 

ArcGIS.Core.Geometry Namespace > Envelope Class > IsEqual Method : IsEqual(Envelope) Method
A geometry to test for equality.
Compares two Envelope for equality. This will check the SpatialReference and coordinates for a match. A geometry to test for equality. Value to indicate if the two geometries are equal.
Syntax
public bool IsEqual( 
   Envelope envelope
)
Public Overloads Function IsEqual( _
   ByVal envelope As Envelope _
) As Boolean

Parameters

envelope
A geometry to test for equality.

Return Value

Value to indicate if the two geometries are equal.
Example
// use the convenience builders - don't need to run on the MCT.
Envelope env1 = EnvelopeBuilder.CreateEnvelope(0, 0, 1, 1, SpatialReferences.WGS84);
Envelope env2 = EnvelopeBuilder.CreateEnvelope(0.5, 0.5, 1.5, 1.5, SpatialReferences.WGS84);

Envelope env3 = env1.Union(env2);

double area = env3.Area;
double depth = env3.Depth;
double height = env3.Height;
double width = env3.Width;
double len = env3.Length;

MapPoint centerPt = env3.Center;
Coordinate2D coord = env3.CenterCoordinate;

bool isEmpty = env3.IsEmpty;
int pointCount = env3.PointCount;

// coordinates
//env3.XMin, env3.XMax, env3.YMin, env3.YMax
//env3.ZMin, env3.ZMax, env3.MMin, env3.MMax

bool isEqual = env1.IsEqual(env2);    // false


// or use the builder constructor - need to run on the MCT.
using (var builder = new EnvelopeBuilder(0, 0, 1, 1, SpatialReferences.WGS84))
{
  env3 = builder.Union(env2);     // builder is updated to the result
  depth = builder.Depth;
  height = builder.Height;
  width = builder.Width;

  centerPt = builder.Center;
  coord = builder.CenterCoordinate;

  isEmpty = builder.IsEmpty;
}


// or use the builderEx constructors = don't need to run on the MCT.
EnvelopeBuilderEx builderEx = new EnvelopeBuilderEx(0, 0, 1, 1, SpatialReferences.WGS84);
builderEx.Union(env2);      // builder is updated to the result

depth = builderEx.Depth;
height = builderEx.Height;
width = builderEx.Width;

centerPt = builderEx.Center;
coord = builderEx.CenterCoordinate;

isEmpty = builderEx.IsEmpty;

env3 = builderEx.ToGeometry() as Envelope;
Requirements

Target Platforms: Windows 10, Windows 8.1

See Also

Reference

Envelope Class
Envelope Members
Overload List