ArcGIS Pro 2.8 API Reference Guide
InsertParts Method (MultipartBuilderEx)

ArcGIS.Core.Geometry Namespace > MultipartBuilderEx Class : InsertParts Method
The index before which the parts will be inserted. Must be less than or equal to PartCount. Specify -1 or (PartCount) to insert the parts at the end of the Parts list.
An enumeration of parts built from an enumeration of segments.
Inserts parts constructed from the set of enumeration of segments to the MultipartBuilderEx. The parts will be inserted to the Parts list before the specified index.
Syntax

Parameters

beforePartIndex
The index before which the parts will be inserted. Must be less than or equal to PartCount. Specify -1 or (PartCount) to insert the parts at the end of the Parts list.
parts
An enumeration of parts built from an enumeration of segments.
Exceptions
ExceptionDescription
parts is null.
beforePartIndex is greater than PartCount.
Remarks
The spatial reference of each segment is ignored, and the attribute of each segment does not affect the attribute awareness of the builder. However, if the builder has an attribute and the start or end point of a segment also has that attribute, then the attribute value will be taken from the point. If the point doesn't have that attribute, then a default value will be set in the builder. For example, suppose the HasZ property of the builder is set to true. If the HasZ property of a point is set to true, then the point's z-value is used. Otherwise, the default value is used. The default value for Z is 0, for M is NaN and for ID is 0.
Requirements

Target Platforms: Windows 10, Windows 8.1

See Also

Reference

MultipartBuilderEx Class
MultipartBuilderEx Members