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

PositionX ( text ; searchString ; start ; occurrence ; matchcase )

Rate this function:  

  Average rating: 3.8  (39 votes)
  Discuss this Custom Function

Theo Ros, n/a

extended Position() function that can also work Case Sensitive

Sample Input:
PositionX ( "abcABC" ; "A" ; 1 ; 1 ; True )
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 Position() function in FM7 is always Case Insensitive...
The Substitute fortunately is not.
If you want a case sensitive Position function, use this one,
with final parameter 'matchcase' set to True (1).

In: text - the textfield or literal string you want examined
searchString - the string to look for
start - the position where to start searching
occurrence - any numeric expression or field containing
a number, representing which instance of
the text string you want to find. A negative
occurrence value causes the scan to go in
the opposite direction from start. A zero
value for occurrence is invalid and returns a result of zero.
matchcase - if set to True (any value not equal to zero)
the function does a Case Sensitive search.
if False (0) the function behaves Case Insensitive

Syntax: PositionX ( text ; searchString ; start ; occurrence ; matchcase )

Return type: Number

(this is an adaptation of the PositionCS() function by Christian Jäger)

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


There are no comments yet. Be the first to post 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 8 + 5 =
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. PreviousMonthEndDate ( myDate )
  (Wed, Mar 07, 3:35am)
2. PreviousMonthName (myDate)
  (Wed, Mar 07, 3:33am)
3. FmTableFields ( tableName ; fieldsInclude ; fieldsExclude ; classExclude ; typeExclude ; prefixExclude )
  (Fri, Mar 02, 6:32am)
4. sql.getTable ( fullyQualifiedFieldObject )
  (Thu, Feb 22, 8:36am)
5. sql.getField ( fullyQualifiedFieldObject )
  (Thu, Feb 22, 8:34am)
6. FilterOut ( ListA ; ListB )
  (Wed, Feb 21, 6:11pm)
7. Char0 ( )
  (Sun, Feb 18, 2:35am)
8. CreateVCardFile ( FirstName ; LastName ; CompanyName ; Phone ; Email ; WEB ; hAddress1 ; hAddress2 ; hZip ; hCity ; hCountry ; wAddress1 ; wAddress2 ; wZip ; wCity%2
  (Sun, Feb 18, 1:50am)

RSS Feed of Custom Functions