Accessing Javscript Variables From an iFrame -

Latest post 02-25-2007 9:31 PM by modchip. 4 replies.

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02-25-2007 8:58 PM

modchip
Joined on 02-09-2006
Ivalice
Posts 710
Points 10,110

Accessing Javscript Variables From an iFrame

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Hi to all.

Does anyone have any idea how to access variables from an iframe. The variable will be accessed from the parent window.

EX:
iframe.htm

<HTML>
<HEAD>
<SCRIPT>var myvar="test";</SCRIPT>
</HEAD>
<BODY>
...
</HTML>

window.htm

<HTML>
...
<BODY>
<IFRAME SRC="iframe.htm" name="myframe"><IFRAME>
<SCRIPT>alert(//script to access the variable my var...);</SCRIPT>
...
</HTML>

Thanks for your time guys. Chao!

Post Points: 20

02-25-2007 9:03 PM In reply to

cruizer
Joined on 12-14-2005
Singapore
Posts 944
Points 22,590

Re: Accessing Javscript Variables From an iFrame

Answer

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i'm not sure if your window.htm can access the variable via the reference myframe.myvar

what i would do, though, is to put in the value inside a hidden form widget (input type="hidden" name="whatever" />) and access the value via myframe.document.<formName>.whatever.value (or myframe.document.forms[0].whatever.value if you are sure that the hidden input widget is in the first form in the document)

http://devpinoy.org/blogs/cruizer
Naglalayong buksan at palayain ang kamalayan ng Pinoy .NET developer

Post Points: 20

02-25-2007 9:07 PM In reply to

modchip
Joined on 02-09-2006
Ivalice
Posts 710
Points 10,110

Re: Accessing Javscript Variables From an iFrame

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Hey, that was fast!

Thanks cruizer, it worked well! :D Thank you very much.

<Problem solved!>

Post Points: 20

02-25-2007 9:15 PM In reply to

cruizer
Joined on 12-14-2005
Singapore
Posts 944
Points 22,590

Re: Accessing Javscript Variables From an iFrame

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i got curious so i tried it. yep myframe.myvar actually worked Smile

http://devpinoy.org/blogs/cruizer
Naglalayong buksan at palayain ang kamalayan ng Pinoy .NET developer

Post Points: 20

02-25-2007 9:31 PM In reply to

modchip
Joined on 02-09-2006
Ivalice
Posts 710
Points 10,110

Re: Accessing Javscript Variables From an iFrame

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Yep! How stupid I am... I had a typo alert(myframe.myvar;) -- should be alert(myframe.myvar);, sorry, my bad. frames['myframe'].myvar also works. Damn semi-colon. Zip it!

Thanks again cruizer!

Post Points: 5

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