Chip: "the feature maybe that old ... but I have never had a need to use it before now. :)"
So it was there when you needed it! :-) After my previous posting, I found a document from August 1993 entitled "Finding with Find in Array". It looks like a draft of a Dimensions article and reads, in part, "With the release of version 3 of 4th Dimension…we are now able to use the function Find in array [with] arrays of pointers" -- Douglas von Roeder 949-336-2902 On Tue, Oct 4, 2016 at 1:57 PM, Chip Scheide <[email protected]> wrote: > the feature maybe that old ... > but I have never had a need to use it before now. > :) > > On Tue, 4 Oct 2016 13:42:05 -0700, Douglas von Roeder wrote: > > Chip: > > > > Hmm… > > > > Find in array with pointer arrays was introduced quite some time ago. > > > > That was one of the new features in 2.2.3 or it *could* have been a > feature > > in V3. I think it was V2 because I was working on a project where I > really > > needed that functionality (GANTT charts in AreaList Pro!!) and that > project > > never saw the light of day with 4D Server/4D Client. > > > > > > > > -- > > Douglas von Roeder > > 949-336-2902 > > > > On Tue, Oct 4, 2016 at 1:30 PM, Chip Scheide <[email protected]> > > wrote: > > > >> Given an array of pointers (in this case pointers to fields) > >> > >> Find in Array will find a pointer to the a field, if it exists, in the > >> array! > >> > >> Ex: > >> using Get Listbox Arrays, on a selection listbox, we populate > >> aryptr_Column_Vars with pointers to the fields being displayed. > >> We populate $My_Pointer with a pointer to one of the fields > >> $My_Pointer := ->[Taale1]Field1 > >> > >> (assuming [Table1]Field1 is displayed in the listbox) > >> > >> Find In Array(aryptr_Column_Vars;$My_Pointer) returns the location > >> (column number) of the field pointer in the array > >> > >> Chip > >> ********************************************************************** > >> 4D Internet Users Group (4D iNUG) > >> FAQ: http://lists.4d.com/faqnug.html > >> Archive: http://lists.4d.com/archives.html > >> Options: http://lists.4d.com/mailman/options/4d_tech > >> Unsub: mailto:[email protected] > >> ********************************************************************** > > ********************************************************************** > > 4D Internet Users Group (4D iNUG) > > FAQ: http://lists.4d.com/faqnug.html > > Archive: http://lists.4d.com/archives.html > > Options: http://lists.4d.com/mailman/options/4d_tech > > Unsub: mailto:[email protected] > > ********************************************************************** > ********************************************************************** > 4D Internet Users Group (4D iNUG) > FAQ: http://lists.4d.com/faqnug.html > Archive: http://lists.4d.com/archives.html > Options: http://lists.4d.com/mailman/options/4d_tech > Unsub: mailto:[email protected] > ********************************************************************** > ********************************************************************** 4D Internet Users Group (4D iNUG) FAQ: http://lists.4d.com/faqnug.html Archive: http://lists.4d.com/archives.html Options: http://lists.4d.com/mailman/options/4d_tech Unsub: mailto:[email protected] **********************************************************************
