How give error message if more than one pdf open

[suemo22]

Hi,

How can I write javascript could where user receives an error message (app.alert) if another pdf file is open?  My program only works if one pdf file is open.  When another is open, it does not work b/c it detects 2 active pdfs open instead of just one.  I want the user to be alerted to close the other pdf before proceeding.  The following did not work:

if event.target > 1

app.alert ("Close all pdfs before proceeding.",3);

else ...

Please suggest an alternative code. Thx.

S

[Test Screen Name]

If you look at other examples of if statements you will see they have brackets. These are not optional. See JavaScript If...Else Statements

[Test Screen Name]

Also event.target is nothing to do with the number of open PDFs, I missed that ! Better to fix the problem with open PDFs than make the user close their other work.

[try67]

Agreed. If you really want to do it, though, the correct way is to look at the length of the activeDocs property of the app object.

If it's longer than one then there are multiple files opened at the moment.

[suemo22]

You are right.  This was a typo.

[Bernd Alheit]

You can get the active document with app.doc.

[suemo22]

Hi,

So I tried the following code

var d = app.activeDocs;

if (d != 1)

{

app.alert ("close all pdfs before proceeding",3);

}

and had multiple documents open to see if alert window would come up but instead got the following error:

:

Notably, I am now getting this error even when only one pdf is open.  What am I doing wrong?

Do I need to embed in trusted function?

S

[try67 · Accepted solution]

Change:

if (d != 1)

To:

if (d.length>1)

(I assume you don't want to show this error message when no files are open...)

[suemo22]

Yes, that did the trick!  TY so much!!!