I have spent 2 weeks trying to figure this out by reading these manuals. That is why I gave up and went to arrays, figuring I could use my knowledge of C to help. What you suggested so far works, but can't understand in what you send how to access individual elements in the array
----- Start Original Message ----- Sent: Fri, 3 Jun 2011 19:41:06 -0600 From: Mike Bonner <bonnm...@gmail.com> To: How to use LiveCode <use-livecode@lists.runrev.com> Subject: Re: Using Arrays > Forgot to mention, once you adjust the array you can then set the datagrid > to the new values by setting the dgdata of group "yourgrid" to tArray. > > Depending on what you're doing, it may be more efficient to just update > values directly in the datagrid. Here are some base links to datagrid > lessons that are pretty helpful, as well as the datagrid api info. > > http://lessons.runrev.com/spaces/lessons/manuals/datagrid > > http://lessons.runrev.com/spaces/lessons/manuals/datagrid_tips > > > On Fri, Jun 3, 2011 at 7:36 PM, Mike Bonner <bonnm...@gmail.com> wrote: > > > dgtext isn't an array value, to do what you want you need to get the dgdata > > > > For example, if you have a simple table grid with 2 columns, col1 and col2 > > with 3 records, to get the array back out do > > > > *get the dgdata of group "yourdatagridgroupname" * > > *put it into tArray* > > > > At this point, knowing whats in the grid if you > > > > *put the keys of tArray* > > since there are 3 records, the keys will be 1, 2 and 3 will be displayed in > > the message box. If you then *put the keys of tArray[1]* you will see the > > column keys, col1 and col2, so to get a specific cell is as you've been > > trying to do with the dgtext tarray[1]["col1"] will get the data from row 1 > > col 1. > > > > if you get the dgtext, it should react like a tab delimited flat file. So > > if you > > > > *get the dgtext of group "mydatagridgroup"* > > *put it* > > > > it should display all rows and columns of the datagrid in the message box > > > > On Fri, Jun 3, 2011 at 7:09 PM, Van Brollini <analog_t...@runbox.com>wrote: > > > >> I have a datagrid of 1250 by 28 that has been successfully uploaded during > >> the creation of the datagrid. > >> > >> I can use this line > >> put the dgText of group "DGTester" into tArray > >> to move the datagrid into an array. During debug process with breakpoint, > >> this is successful. > >> > >> Now when I try to read, modify, compute results I get nothing. > >> > >> I have used get tArray[1][16] to query the array and get NULL. > >> I have tried to put "3.79e-6" into tArray[1][16] and the whole array ends > >> up NULL. > >> > >> What do I need to do to access individual elements of the array, modify > >> them and put their answers back into the array. In C this is a piece of > >> cake, however, LiveCode is not releasing her secrets to me as yet. > >> > >> Thanks > >> > >> _______________________________________________ > >> use-livecode mailing list > >> use-livecode@lists.runrev.com > >> Please visit this url to subscribe, unsubscribe and manage your > >> subscription preferences: > >> http://lists.runrev.com/mailman/listinfo/use-livecode > >> > > > > > _______________________________________________ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your subscription > preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode > ----- End Original Message ----- _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
