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

VariableDestroyAll

Rate this function:  

RatingRatingRatingRatingRating
  Average rating: 4.5  (30 votes)
  Discuss this Custom Function

Jonathan Mickelson, Thought Development Corp.
http://thought-dev.com

When used in conjunction with

Sample Input:
If $$GlobalVarList =

$$GlobalVarList|0
$$testVar|34
$$AgeTemp|7
Sample Output:
The following variables have been set to Null (""):

$$GlobalVarList
$$testVar
$$AgeTemp


 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:

Requires FileMaker 8 or higher.

Removes all global variables listed in $$GlobalVarList, including $$GlobalVarList. If used properly, this can insure a file has no Global variables in use any more.

NOTE: Should be used in conjunction with the CF "VariableInitialize ( name ; initialValue )", which maintains a list of all variables initialized in a file in another variable named $$GlobalVarList.

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:

Forgive my ignorance, but I'm scratching my brain raw figuring out how to implement this (and its companion) custom function.

Let's say there are three global variables ($$_Alpha, $$_Bravo, $$_Charlie) that I want to null in a script using this technique. How do I set it up, not knowing what the variable's contents are (since they'll change as a loop function is called)?

TIA for your help.

Rich, Lewiston, ID, USA
May 22, 2017 1:41pm

This function only removes variables it knows about because their names live in a variable called $$GlobalVarList... Which is what the other companion function does, it creates the variable and logs it to that variable.

You could easily write a function that takes a list of variable names, as teext, and clears them all in one fell swoop. It would either be recursive, or substitute the evalates clearing similar to my functions.

A great custom funtiin is CustomList, Google it. It's tremendous, and does it's majic non recursively!!

Good luck!!!

Jonathan Mickelson, Los.Angeles, CA
May 22, 2017 8:58pm

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 0 + 9 =
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. ProperAllWords ( text )
  (Thu, Dec 14, 5:19pm)
2. MatchExist ( SourceTable.Field ; DestTable.Field ; ReturnField )
  (Thu, Dec 14, 1:07pm)
3. BVR_Format ( bvr )
  (Wed, Dec 13, 5:32pm)
4. NumberToHexadecimal(NumberValue)
  (Fri, Dec 08, 8:54am)
5. Get_BaseTable
  (Thu, Dec 07, 4:27pm)
6. JSONCreateVarsFromKeys ( json ; namespace )
  (Wed, Dec 06, 8:21pm)
7. GetTableNzme ( field )
  (Tue, Dec 05, 9:16pm)
8. TimeFormatAsText ( theTime )
  (Mon, Nov 13, 1:59pm)

RSS Feed of Custom Functions