topic Re: Method to prevent "Do you want to save" message? in Discussions

Method to prevent "Do you want to save" message?

nikles — Fri, 09 Jun 2023 17:05:53 GMT

Hi. I'm wondering if there is a way I can prevent the "Do you want to save..." message when a table is closed? That is, this message:

Why? Because I want to allow the user to make changes to the table, but I want to force them to save as a csv because we have other apps that require csv format. To do this, I'm adding an " << On Close" script:

Names Default To Here(1);
dt = Open("$SAMPLE_DATA/Big Class.jmp");
a = dt << is Dirty;
Show(a);
dt << add rows(5);
b = dt << is dirty;
Show(b);
dt << On Close(
	dt = CurrentDataTable();
	If(dt << Is Dirty,
		dt << Save As("$DESKTOP/file.csv")
	)
);

However, the "Do you want to save..." message still always appears prior to saving the csv. I really don't want the user to save as both a jmp table and csv file, because then it creates 2 copies of the same doc, which will lead to confusion.

Specs:

JMP Pro 16.2.0

macOS Big Sur: 11.6.7

Thanks!

Re: Method to prevent "Do you want to save" message?

Craige_Hales — Thu, 28 Jul 2022 21:35:45 GMT

dt<<setDirty(0);

will mark the table "not dirty", preventing the save prompt.

Re: Method to prevent "Do you want to save" message?

nikles — Thu, 28 Jul 2022 21:50:19 GMT

Hi Craige. I assume you mean to add that line to the "On Close" script. I tried that too. The problem is that the save prompt appears prior to the On Close script being executed.

Re: Method to prevent "Do you want to save" message?

Craige_Hales — Fri, 29 Jul 2022 10:53:42 GMT

Set the not dirty state right after the table is loaded or modified. I sometimes do that for temporary tables I might want to examine but don't want to keep. The idea is that any time a table is different from the version saved on disk it is not a clean copy of what is on disk and needs to be saved. A new table that has not been saved is dirty, but you can change it.

edit: since you are testing the dirty flag to decide it it needs saving, you'll need another approach, perhaps always saving it.

Re: Method to prevent "Do you want to save" message?

nikles — Fri, 29 Jul 2022 15:17:56 GMT

Aha - yes, that's the issue. To prevent the save prompt by setting the non-dirty state when the table is loaded: easy. To set the non-dirty state after anytime the user modifies the table: I'm not aware of any way to do this (such as an " << On Change()" message). Maybe there's just no solution. :(

Re: Method to prevent "Do you want to save" message?

jthi — Fri, 29 Jul 2022 15:30:40 GMT

Depending on what you are trying to do and what modifications you allow users to do, maybe you could use New Data Box()

Re: Method to prevent "Do you want to save" message?

Craige_Hales — Fri, 29 Jul 2022 19:06:48 GMT

The dirty flag is set each time a change is made. But if it is set when the table is closed, then you will get a save prompt. You could try an experiment where you save it as a CSV file early on, I'm not sure where it will save it later after another change is made. I think it might still remember that it's saving to the CSV file.