Tests whether an element's parameter has a value or not.

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 20.0.0.0 (20.0.0.377)
Since: 2020

Syntax

C#
`public class ParameterValuePresenceRule : FilterRule`

Visual Basic
`Public Class ParameterValuePresenceRule _ Inherits FilterRule`

Visual C++
`public ref class ParameterValuePresenceRule : public FilterRule`

Inheritance Hierarchy