DerivedParameter.isValid Property

Parent Object: DerivedParameter
Defined in namespace "adsk::fusion" and the header file is <Fusion/Fusion/DerivedParameter.h>

Description

Indicates if this object is still valid, i.e. hasn't been deleted or some other action done to invalidate the reference.

Syntax

"derivedParameter_var" is a variable referencing a DerivedParameter object.

# Get the value of the property.
propertyValue = derivedParameter_var.isValid
"derivedParameter_var" is a variable referencing a DerivedParameter object.
#include <Fusion/Fusion/DerivedParameter.h>

// Get the value of the property.
boolean propertyValue = derivedParameter_var->isValid();
"derivedParameter_var" is a variable referencing a DerivedParameter object.
#include <Fusion/Fusion/DerivedParameter.h>

// Get the value of the property.
boolean propertyValue = derivedParameter_var->isValid();

Property Value

This is a read only property whose value is a boolean.

Version

Introduced in version January 2026