HasNoValueFilterRule

Description:
Tests whether an element's parameter doesn't have a value.

Inheritance Hierarchy:
System.Object
  Autodesk.Revit.DB.FilterRule
    Autodesk.Revit.DB.ParameterValuePresenceRule
      Autodesk.Revit.DB.HasNoValueFilterRule

public class HasNoValueFilterRule : ParameterValuePresenceRule

Public Class HasNoValueFilterRule _
	Inherits ParameterValuePresenceRule

public ref class HasNoValueFilterRule : public ParameterValuePresenceRule

Name	Return Type	Description	Inherited From
C HasNoValueFilterRule(ElementId)	None	constructs an instance of HasNoValueFilterRule.

Name	Return Type	Description	Inherited From
M Dispose()	None	Releases all resources used by the	FilterRule
M ElementPasses(Element)	bool	Derived classes override this method to implement the test that determines whether the given element passes this rule or not.	FilterRule
M GetRuleParameter()	ElementId	Returns the ElementId of the parameter associated to this FilterRule if there is one, or invalidElementId if there is no associated parameter.	FilterRule

Name	Return Type	Description	Inherited From
P IsValidObject	bool	Specifies whether the .NET object represents a valid Revit entity.	FilterRule
P Parameter	ElementId	The parameter which will be evaluated to pass this rule.	ParameterValuePresenceRule