I would like to be able to determine whether a feature class passed to a procedure is a 3D feature class (hasZ) or not. How can I do this in VB .Net & ArcObjects?

2 Answers 2


Check the geometrydef of the Shape field

Dim field as IField
set field = = class.Fields.get_Field(class.Fields.FindField(class.ShapeFieldName))
hasz = field.GeometryDef.HasZ

You can use HasZ on IDEFeatureClass.

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