OptionalValidatedDoubleProperty
open class OptionalValidatedDoubleProperty(initialValue: Double?, bean: Any? = null, beanName: String? = null, validation: (ValidatedProperty<Double?>, Double?, Double?) -> Double?) : ValidatedProperty<Double?> , OptionalDoubleProperty
Boilerplate which avoids having to use generics.
Similar to ValidatedDoubleProperty, but the value can also be null
.