FamilyInstance.ExtensionUtility

Description:
Property to check whether the instance can be extended and return the interface for extension operation.

Remarks:
If the family instance can not support extension operation, it returns .a null reference (Nothing in Visual Basic)

public IExtension ExtensionUtility { get; }

Public ReadOnly Property ExtensionUtility As IExtension
Get

public:
property IExtension^ ExtensionUtility {
	IExtension^ get ();
}