IEllipseElement Interface (ArcObjects .NET 10.6 SDK)
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ArcObjects Library Reference (Carto)  

IEllipseElement Interface

Indicator interface that identifies an Ellipse element.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

When To Use

IEllipseElement is an interface implemented by the EllipseElement coclass only.  The interface has no properties or methods, but exists to give the developer a method of determining whether the element is a EllipseElement.

To check if a graphic element is a EllipseElement, you just need to check to see if the object supports IEllipseElement.

CoClasses that implement IEllipseElement

CoClasses and Classes Description
EllipseElement The Graphic Element to display Ellipses.