- TIBCO BusinessEvents®
- Standard
- Instance
- PropertyArray

# Instance.PropertyArray.removeConceptReference()

## Signature

`boolean removeConceptReference (PropertyArrayConceptReference arr, Concept instance)`

## Domain

ACTION, BUI

## Description

This method removes the first occurrence of PropertyAtomConceptReference for which the current value is set to `instance` from a PropertyArrayConceptReference. It returns true and shifts all the subsequent array elements PropertyAtomConceptReference to the left (substracts one to their indices) if the PropertyAtomConceptReference is found, false otherwise.

## Parameters

Name | Type | Description
--- | --- | ---
`arr` | `PropertyArrayConceptReference` | A PropertyArrayConceptReference for the action to be performed on.
`instance` | `Concept` | Current value of the PropertyAtomConceptReference for removal.

## Returns

Type | Description
--- | ---
`boolean` | if a PropertyAtomConceptReference is removed.

## Cautions

none