ArcGIS Pro 2.7 API Reference Guide
YMax Property (EnvelopeBuilder)
Example 

ArcGIS.Core.Geometry Namespace > EnvelopeBuilder Class : YMax Property
Gets or sets the Y maximum of this instance.
Syntax
public double YMax {get; set;}
Public Property YMax As Double
Exceptions
ExceptionDescription
This method or property must be called within the lambda passed to QueuedTask.Run.
Remarks
If the value passed in to set YMax is less than YMin, then YMin is also set to this value. To set both the minimum and maximum values simultaneously, use SetXYCoords.
Example
Coordinate2D minCoord = new Coordinate2D(1, 3);
Coordinate2D maxCoord = new Coordinate2D(2, 4);

// Builder constructors need to run on the MCT.
ArcGIS.Desktop.Framework.Threading.Tasks.QueuedTask.Run(() =>
{
  using (EnvelopeBuilder builder = new EnvelopeBuilder(minCoord, maxCoord))
  {
    // builder.XMin, YMin, Zmin, MMin  = 1, 3, 0, double.Nan
    // builder.XMax, YMax, ZMax, MMax = 2, 4, 0, double.Nan

    // set XMin.  if XMin > XMax; both XMin and XMax change
    builder.XMin = 6;
    // builder.XMin, YMin, ZMin, MMin  = 6, 3, 0, double.Nan
    // builder.XMax, YMax, ZMax, MMax = 6, 4, 0, double.Nan

    // set XMax
    builder.XMax = 8;
    // builder.XMin, YMin, ZMin, MMin  = 6, 3, 0, double.Nan
    // builder.XMax, YMax, ZMax, MMax = 8, 4, 0, double.Nan

    // set XMax.  if XMax < XMin, both XMin and XMax change
    builder.XMax = 3;
    // builder.XMin, YMin, ZMin, MMin  = 3, 3, 0, double.Nan
    // builder.XMax, YMax, ZMax, MMax = 3, 4, 0, double.Nan

    // set YMin
    builder.YMin = 2;
    // builder.XMin, YMin, ZMin, MMin  = 3, 2, 0, double.Nan
    // builder.XMax, YMax, ZMax, MMax = 3, 4, 0, double.Nan

    // set ZMin.  if ZMin > ZMax, both ZMin and ZMax change
    builder.ZMin = 3;
    // builder.XMin, YMin, ZMin, MMin  = 3, 2, 3, double.Nan
    // builder.XMax, YMax, ZMax, MMax = 3, 4, 3, double.Nan

    // set ZMax.  if ZMax < ZMin. both ZMin and ZMax change
    builder.ZMax = -1;
    // builder.XMin, YMin, ZMin, MMin  = 3, 2, -1, double.Nan
    // builder.XMax, YMax, ZMax, MMax = 3, 4, -1, double.Nan

    builder.SetZCoords(8, -5);
    // builder.XMin, YMin, ZMin, MMin  = 3, 2, -5, double.Nan
    // builder.XMax, YMax, ZMax, MMax = 3, 4, 8, double.Nan

    Coordinate2D c1 = new Coordinate2D(0, 5);
    Coordinate2D c2 = new Coordinate2D(1, 3);
    builder.SetXYCoords(c1, c2);
    // builder.XMin, YMin, ZMin, MMin  = 0, 3, -5, double.Nan
    // builder.XMax, YMax, ZMax, MMax = 1, 5, 8, double.Nan

  }
});
Requirements

Target Platforms: Windows 10, Windows 8.1

See Also

Reference

EnvelopeBuilder Class
EnvelopeBuilder Members