4D v13.4

Is a list

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4D v13.4
Is a list

Is a list 


 

Is a list ( list ) -> Function result 
Parameter Type   Description
list  ListRef in ListRef value to be tested
Function result  Boolean in TRUE if list is a hierarchical list FALSE if list is not a hierarchical list

The Is a list command returns TRUE if the value you pass in list is a valid reference to a hierarchical list. Otherwise, it returns FALSE.

See example for the command CLEAR LIST.

See examples for the command DRAG AND DROP PROPERTIES.

 
PROPERTIES 

Product: 4D
Theme: Hierarchical Lists
Number: 621

 
INDEX

Alphabetical list of commands

 
HISTORY 

Created: 4D v6

 
SEE ALSO 

DRAG AND DROP PROPERTIES