ArcGIS Pro 2.7 API Reference Guide
XYTolerance Property (SpatialReferenceBuilder)
Example 

ArcGIS.Core.Geometry Namespace > SpatialReferenceBuilder Class : XYTolerance Property
Gets or sets the XYTolerance.
Syntax
public double XYTolerance {get; set;}
Public Property XYTolerance As Double
Exceptions
ExceptionDescription
This method or property must be called within the lambda passed to QueuedTask.Run.
Remarks
When setting the XYTolerance, if the input value is not valid (i.e. less than 0), the default value will be set.
Example
// Builder constructors need to run on the MCT.
ArcGIS.Desktop.Framework.Threading.Tasks.QueuedTask.Run(() =>
{
  // use the builder constructor
  using (SpatialReferenceBuilder srBuilder = new SpatialReferenceBuilder(3857))
  {
    // spatial reference builder properties
    int builderWkid = srBuilder.Wkid;
    string builderWkt = srBuilder.Wkt;
    string builderName = srBuilder.Name;

    double xyScale = srBuilder.XYScale;
    double xyTolerance = srBuilder.XYTolerance;
    double xyResolution = srBuilder.XYResolution;
    Unit unit = srBuilder.Unit;

    double zScale = srBuilder.ZScale;
    double zTolerance = srBuilder.ZTolerance;
    Unit zUnit = srBuilder.ZUnit;

    double mScale = srBuilder.MScale;
    double mTolerance = srBuilder.MTolerance;

    double falseX = srBuilder.FalseX;
    double falseY = srBuilder.FalseY;
    double falseZ = srBuilder.FalseZ;
    double falseM = srBuilder.FalseM;

    // get the spatial reference
    SpatialReference sr3857 = srBuilder.ToSpatialReference();

    // spatial reference properties
    int srWkid = sr3857.Wkid;
    string srWkt = sr3857.Wkt;
    string srName = sr3857.Name;

    xyScale = sr3857.XYScale;
    xyTolerance = sr3857.XYTolerance;
    xyResolution = sr3857.XYResolution;
    unit = sr3857.Unit;

    zScale = sr3857.ZScale;
    zTolerance = sr3857.ZTolerance;
    zUnit = sr3857.ZUnit;

    mScale = sr3857.MScale;
    mTolerance = sr3857.MTolerance;

    falseX = sr3857.FalseX;
    falseY = sr3857.FalseY;
    falseZ = sr3857.FalseZ;
    falseM = sr3857.FalseM;

    bool hasVcs = sr3857.HasVcs;
  }
});
Requirements

Target Platforms: Windows 10, Windows 8.1

See Also

Reference

SpatialReferenceBuilder Class
SpatialReferenceBuilder Members