App.openDoc unpredictable results

Question

Hi
I'm trying to create a simple button that opens a PDF attachment (one of several). I use the following code:
app.openDoc("my.pdf");
This worked for one PDF but not others, all of which I have created in the same way. I tried inserting this.disclosed = true in the attachment doc scripts, (and tried app.this.disclosed). But this makes no difference. Strangely, I found that opening the attached file from the Attachments panel, running the PDF optimiser on it as far as saving, and saving the file in a new location then cancelling the optimiser, caused the attached files to load once I returned to the main PDF. However, on saving and closing the main PDF and reopening it, I'm back to square one, but no files open now, not even the original attachment. And now I can't use the optimiser workaround to make the others work. I've tried creating new files from scratch and reading the Acrobat scripting resources, but can find nothing to help me.
Many thanks
Kev

Answer 1

Hi
I think I've solved it.
This works:
this.exportDataObject({ cName: "Untitled Object 3", nLaunch: 2 });
Attachments made via the UI are automatically given the names "Untitled Object"; "Untitled Object 1"; and so on. As long as the attachment list is not re-sorted, these names match the order in the attachment list, which is the order in which the files were attached.
This script helped me see in the JS debugger what attachment names were in use:
var d = this.dataObjects;
for (var i = 0; i < d.length; i++)
console.println("Data Object[" + i + "]=" + d[i].name);
However, I'm not sure how to work out which is which if you have multiple attachments that have been re-sorted other than by trial and error.
Thanks for the help that pointed me to this solution.
Kevin