Indicates if the element supports an extension option.

Namespace: Autodesk.Revit.DB.Structure
Assembly: RevitAPI (in RevitAPI.dll) Version: 21.0.0.0 (21.1.1.109)
Since: 2015

Syntax

C#
`public bool HasExtension { get; }`

Visual Basic
`Public ReadOnly Property HasExtension As Boolean Get`

Visual C++
`public: property bool HasExtension { bool get (); }`

Remarks

Analytical model elements for walls support extension options, while those for floor or slabs do not.