Namespace: Autodesk.Revit.DB

HasNoValueFilterRule

Class

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

Syntax

public class HasNoValueFilterRule : ParameterValuePresenceRule

Public Class HasNoValueFilterRule
	Inherits ParameterValuePresenceRule

public ref class HasNoValueFilterRule : public ParameterValuePresenceRule

type HasNoValueFilterRule = 
    class
        inherit ParameterValuePresenceRule
    end

HasNoValueFilterRule Class Members:

Name	Description	Inherited From
HasNoValueFilterRule	constructs an instance of HasNoValueFilterRule.

Name	Description	Inherited From
IsValidObject	Specifies whether the .NET object represents a valid Revit entity. (Inherited from FilterRule )	FilterRule
Parameter	The parameter which will be evaluated to pass this rule. (Inherited from ParameterValuePresenceRule )	ParameterValuePresenceRule

Name	Description	Inherited From
Dispose	(Inherited from FilterRule )	FilterRule
ElementPasses	Derived classes override this method to implement the test that determines whether the given element passes this rule or not. (Inherited from FilterRule )	FilterRule
Equals	Determines whether the specified object is equal to the current object. (Inherited from Object )	Object
GetHashCode	Serves as the default hash function. (Inherited from Object )	Object
GetRuleParameter	Returns the ElementId of the parameter associated to this FilterRule if there is one, or invalidElementId if there is no associated parameter. (Inherited from FilterRule )	FilterRule
GetType	Gets the Type of the current instance. (Inherited from Object )	Object
ToString	Returns a string that represents the current object. (Inherited from Object )	Object