Software Venture Consulting

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

Free Web Tools
Free FileMaker Tools

Personal Pages
Videos
Adventures
Links

Shopping Cart
Shopping Cart

Search:

Free Newsletter
Signup


Contact


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

IsEmptyString ( Field )

Rate this function:  

RatingRatingRatingRatingRating
  Average rating: 4.0  (39 votes)
  Discuss this Custom Function

Ryan Grgurich, CRS Manufacturing, Inc.
http://www.crsmfg.com

Use to determine if field is an empty string value.

Sample Input:
IsEmptyString ( PhoneNumber::Number )
Sample Output:
1 if field is empty string or empty record, maybe in the last portal row.

0 if field is not an empty string


 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:

Really just a little sugar. Use it to determine if a field is an empty string.

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:

5 most recent comments | Show all 11 comments

I opt to use an empty CF and call it Null. This makes code easier to read.


Table::Field = Null

http://filemakerstandards.org/display/cs/Empty+strings+%28null+valu es%29

Matt Petrowsky, Murieta, CA
October 24, 2010 12:18pm

Table::Field = "", returns 1 for an empty related record in a portal. IsEmpty(Table::Field) returns 0 for an empty record in a portal. I suppose I could just use, not IsEmpty(Table::Field) to get a 1.

Ryan Grgurich, Northridge, CA
October 25, 2010 8:57am

IsEmpyt() and your own custom function have nothing to do with checking for an empty *record*. They check for an empty field. If IsEmpty( Table::Field ) returns 0 (false), then that means that the "Field" field in the related record of the "Table" table occurrence *is not* empty. Getting "not IsEmpty()" for a field that contains a value would return false, not 1.

In order to check for an empty *record*, your function would need to check every field of a given record. That could potentially be useful, but probably not very practical to implement.

beowulf, Santa Clara, CA
October 25, 2010 11:40am

I screwed up the "not IsEmpty()" explanation. It would return 1 for a field that contains a value.

beowulf, Santa Clara, CA
October 25, 2010 11:48am

I all ways auto generate UUID for every record, so checking for these lets me know if a record exist or not.

Ryan Grgurich, Northridge, CA
October 26, 2010 9:45am

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

Your Name:
City/Location:
Comment:
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 4 + 2 =
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. decFromHex ( hexValue )
  (Mon, Oct 16, 12:34pm)
2. MonthYearList ( startmonth ; startyear ; numbermonth ; short )
  (Mon, Oct 16, 3:38am)
3. ErrorDescription ( errorNumber )
  (Wed, Sep 27, 2:51am)
4. decodeEntities (text)
  (Wed, Sep 27, 1:22am)
5. HexidecimalToNumber ( HexidecimalValue ; counter )
  (Mon, Sep 25, 12:39pm)
6. FixedFieldConverter ( Fieldname ; f1 ; f2 ; f3 ; f4 ; f5 ; f6 ; f7 ; f8 ; f9 ; f10 ; f11 ; f12 ; f13 ; f14 ; f15 ; f16 ; f17 ; f18 ; f1
  (Fri, Sep 15, 12:34pm)
7. ShannonEntropy ( text )
  (Thu, Sep 07, 5:59am)
8. LetterCount ( text ; summary )
  (Thu, Sep 07, 5:53am)

RSS Feed of Custom Functions