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 FileMaker Pro Custom Functions

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NextID ( valueList ; start )

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  Average rating: 3.8  (44 votes)
  Discuss this Custom Function

Daniele Raybaudi, ACI
www.aci.it

Returns the lowest NOT used number of a value list.

Sample Input:
NextID ( 1¶2¶3¶4 ; 1 )
NextID ( 4¶6¶8¶9 ; 1 )
NextID ( "" ; 1 )
Sample Output:
5
1
1


 Then copy & paste into FileMaker Advanced's Edit Custom Function window.

Click here to copy To Clip Manager if you have myFMbutler's Clip Manager installed

Description:

NextID ( valueList ; start ) custom function

Author: Daniele Raybaudi

Parameter:
valueList - list of numbers
start - number from wich to start the progression

Returns the lowest NOT used number of a value list.
So:
NextID ( 1¶2¶3¶4 ; 1 ) returns: 5
NextID ( 4¶6¶8¶9 ; 1 ) returns: 1
NextID ( "" ; 1 ) returns: 1

I used this CF to automatically recover the progression of an auto-entered number, when a record is deleted.
Simply make:
1) a value list ( "IDs" ) with values coming from the field
2) enter this calc into the option for auto-enter a value in the field:
NextID ( ValueListItems ( Get ( FileName ) ; "IDs" ) ; 1 )

BTW: try the free demo file at:
http://fmforums.com/forum/showpost.php?post/233683/

Note: these functions are not guaranteed or supported by BrianDunning.com. Please contact the individual developer with any questions or problems.

This is my Custom Function and I want to edit it

Discuss:

THANK YOU! This is EXACTLY what I was looking for!

Heidi, Mechanicsburg PA
February 12, 2010 6:15pm

Ditto

Simon Plint, Newcastle/Australia
March 21, 2010 4:57pm

Ditto (Ditto + 1)

lloop, Vienna, Austria
November 25, 2010 11:14am

La funzione e bellissima, purtroppo, se "duplico" un record, il nr. progressivo non si aggiorna, lo stesso errore, si evidenzia se importi dati da un'altro file.
Mi farebbe piacere sapere se è possibile un intervento di rettifica in modo da farla funzionare anche con i due errori suddetti.

matrix2012, italy
March 19, 2012 1:58pm

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