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ListExist ( InList ; InValue )

Does a value exist in a list.

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Richard DeShong - Show more from this author Logic Tools http://logictools.com

  Function definition: (Copy & paste into FileMaker's Edit Custom Function window)

not IsEmpty ( FilterValues ( InValue ; InList ) ) // Does InValue exist in InList ? Click to copy

Find out if a given value exists in a list. The FM function FilterValues() returns nothing if the value does not exist, so this function just tests for that.

NOTE: This is NOT for testing if a list-of-values are in another list-of-values.

~~~ Design Notes ~~~
This is part of a series of LIST functions.
ListAdd, ListAddUnique, ListExist, ListGet, ListToggle.
Each uses the same function name format: List( ).
Each uses the same parameter order: InList; InValue.
~~~

 

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