Syntax

LabVIEWParameterElement.ValueExprIsOptional

Data Type

Boolean

Purpose

Use this property to determine whether the argument value expression is optional. You do not have to specify an optional value expression to call the module successfully. Value expressions for output parameters and value expressions for cluster and array parameters that have parameter elements are optional.

See Also

LabVIEWParameterElement.Direction

LabVIEWParameterElement.ValueExpr

LabVIEWParameterElement.ValueExprIsIgnored