4D v13.4Is field number valid |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
4D v13.4
Is field number valid
Is field number valid
The Is field number valid command returns True if the field whose number is passed in the fieldNum parameter exists in the table whose number or pointer is passed in the tableNum or tablePtr parameter. If the field does not exist, the command returns False. Keep in mind that the command returns False if the table containing the field is in the Trash of the Explorer. This command can be used to detect any field deletions, which create gaps in the sequence of field numbers. |
PROPERTIES
Product: 4D
INDEX HISTORY
Created: 4D v11 SQL SEE ALSO
Get last table number |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||