Software Venture Consulting

FileMaker Pro downloads & Resources
FileMaker Custom Functions
FileMaker Web Viewer Examples
FileMaker Pro & Lasso Consulting
FileMaker Books
FileMaker Articles
FileMaker Error Reference

Free Web Tools
Free FileMaker Tools

Personal Pages

Shopping Cart
Shopping Cart


Free Newsletter


Privacy Policy

FileMaker is a registered trademark of FileMaker, Inc. in the U.S. and other countries.


 FileMaker Pro Custom Functions

List  |  Show Random  |  Upload  |  Add This to Your Site

ZapValues ( ListA ; ListB )

Rate this function:  

  Average rating: 4.2  (48 votes)
  Discuss this Custom Function

Ray Cologon, NightWing Enterprises

Removes the items in ListB from ListA.

Sample Input:
ZapValues ( "Dan¶Ron¶Paul¶Jen¶Greg"; "Ron¶Jen" )
Sample Output:

 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


The ZapValues function removes from ListA any values which are found in ListB, where ListA and ListB are carriage-return separated text lists.

This provides the logical inverse of FileMaker 7's built-in FilterValues( ) function.

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

This is my Custom Function and I want to edit it


Cool function. Thanks!

Mark de Haas Meijer, Almere
April 06, 2010 3:35am

Very useful !
I've tried to make it, without success.
Thanks a lot :)

F.Bruckert, Tours/France
June 15, 2010 4:26am

Thank you! I have tried 4 of these functions here to date, and this is the only one that handled properly when value being removed was at start of list twice.

ZapValues ( "a¶a¶b¶c¶a" ; "a" ) does return "b¶c"

Thanks again.

Justin Pakes, Virginia, USA
July 17, 2012 9:28pm

Here is the function without a Return at the end, The function name has been changed to 'RemoveVales';

If (
IsEmpty ( ListA ); Let( $repRemoveValues = ""; "");


value = LeftValues(ListA; IsEmpty(FilterValues(LeftValues(ListA; 1); ListB)));
value_trim= Substitute(value;¶; "");
$repRemoveValues = If( not IsEmpty(value); $repRemoveValues + 1; $repRemoveValues);
cr = If($repRemoveValues > 1 and not IsEmpty(value_trim); ¶; "")];

cr &
value_trim &
RemoveValues(RightValues(ListA; ValueCount(ListA) - 1); ListB)

Jon Klassen, Alberta, Canada
August 12, 2014 11:18am

Make a comment about this Custom Function (please try to keep it brief & to the point). Anyone can post:

Your Name:
characters left. If you paste in more than 1500 characters, it will be truncated. Discuss the function - advertisements and other useless posts will be deleted.
Answer 3 + 8 =
Search for Custom Functions:

Custom Functions Widget
Download the Custom Function Dashboard Widget for OS X
Keep all the latest Custom Functions right at your fingertips!

Newest Custom Functions:

1. interpolation (y1; y2; y3; x1; x2; x3; x1y1; x2y1; x1y2; x2y2; rnd)
  (Sat, May 19, 3:55am)
2. @JSONFormatElements ( json )
  (Tue, May 15, 3:31am)
3. WindowNamesAll ( dbNames ; excludeCurrentWindow )
  (Sat, May 12, 11:34am)
4. RandomChoiceFromList ( values ; required )
  (Wed, May 02, 6:35am)
5. @JSONFormatElements ( json )
  (Fri, Apr 27, 7:31am)
6. MBS-OCR ( language ; Image )
  (Mon, Apr 23, 1:48pm)
7. MBS_Image_Rotate ( Picture ; rotation )
  (Mon, Apr 23, 1:27pm)
8. UnQuote ( string )
  (Tue, Apr 10, 12:34pm)

RSS Feed of Custom Functions