COLLECTION.EXIST Function

Syntax

Result_Flag as L = Exist(A key)

Arguments

key: A value of any type (other than pointer) that uniquely identifies an element in a collection.

Description

Returns TRUE if element is in the collection.

Discussion

The <COLLECTION>.EXIST() method returns .T. (TRUE) if the specified Key exists in the specified collection; otherwise, it returns .F. (FALSE). Important : Trailing spaces in Key are considered.

Example

dim mycollection as u
mycollection.set("FJ","Fred Jones")
mycollection.set("BB","Bryan Boyd")
mycollection.set("KL","Kim Lee")
mycollection.set("KB","Karen Boyd")
mycollection.set("EL","Erica Loyd")
? mycollection.exist("BB")
= .T.
? mycollection.exist("bb")
= .T.
? mycollection.exist("b")
= .F.