topic Problem: Persistent Parameter Arrays Values & deletion in GDL

Problem: Persistent Parameter Arrays Values & deletion

Nader Belal — Mon, 26 Sep 2022 20:44:28 GMT

Hi everyone,

I have a problem with parameter arrays and deletion process that can be resumed as, inability to delete their values with every known process ...

Background:
I have a bunch of 2D parameter arrays of different types mainly integers that goes in parallel (ie: all have same length and width) to act as information placeholders; and the majority of these integer arrays were used with values{2} function, and connected to the GUI using UI_INFIELD function (or any of its version).
Mentioned arrays will have a size 20*50 (but I was working with a smaller version of them).

Problem:
What ever process I try to delete those arrays, I find that they still have the same width, or some get deleted others as if nothing happened.

Tested methods:

Substitution of "APPLICATION_QUERY" function method "firstoccasion_in_progress" with time stamp as explained in DELETE AN ITEM FROM A PARAMETER ARRAY
Using Parameter Buffer Manipulation using Braza's method in LIMITING RANGE OF PARAMETER ARRAYS either by not copying undesired values from Parameter Arrays or Temporary Variable Arrays, of vise versa
Deleting all values from Parameter Arrays (including re-initialising them with 1-2 values) then copying the values from Temporary Variable Arrays to Parameter Arrays.
In this time, many arrays didn't accept any values.
Changing parameter arrays names.
Arrays' script manipulations were defined in "Parameter Script" & "Master Script"

Request:
A sure fire method for parameter array value update.

Re: Problem: Persistent Parameter Arrays Values & deletion

Bruce — Sat, 05 Sep 2020 10:06:13 GMT

Have you tried re-declaring the arrays?

The process for flexible-length arrays:

1. Declare a temporary array
2. Fill the temporary array with the parameter array
3. Re-declare the parameter array
4. VALUES commands to be listed after this declaration, not before

Sample code, where 'size1' is an integer parameter, and myArray is a length parameter, activated as an array.

IF GLOB_MODPAR_NAME = "size1" THEN
	DIM _tempArray []
	_tempArray = myArray
	
	DIM myArray []
	FOR ii = 1 to size1
		IF ii > vardim1(_tempArray) THEN
			_value = 0
		ELSE
			_value = _tempArray[ii]
		ENDIF
		myArray[ii] = _value
	NEXT ii
	PARAMETERS myArray = myArray
ENDIF

VALUES "myArray" RANGE (0, )

Re: Problem: Persistent Parameter Arrays Values & deletion

Peter Baksa — Mon, 07 Sep 2020 09:26:17 GMT

Hi Moonlight,

This code works for me:

if GLOB_MODPAR_NAME = "reset" then
	dim ar1[1][1]
	dim ar2[1][1]
	parameters ar1 = ar1, ar2 = ar2
endif

Maybe if there is another connection between your arrays based on some GLOB_MODPAR_NAME, it might not work as expected.