Accessing contents inside an iframe

2 New Member

What I'm trying to accomplish:
I have an html on my harddrive that includes another local file (plain text) through an iframe. I'd like to also parse that plain text file using javascript, and put a summary a little further down on the page.

Here's my current code:

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         var myFrame = document.getElementById("theframe");

         var myDoc = myFrame.document;

         var myContent = myDoc.firstChild;

The error console in firefox says: "myDoc has no properties (line 3)".

I only care if this works on firefox, since I'm planning to just use it myself. There shouldn't be any access violation, since both documents come from the same location. Is there anything I can do to get this to work?

Jul 31 '07 #1

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Recognized Expert Moderator Expert

hi ...

you may use something like this:

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function get_iframe_content(frame_name) {

    // refer the frame by name and the frame's document

    var doc = window.frames[frame_name].document;

    alert(doc.firstChild.innerHTML);

}

kind regards

Aug 1 '07 #2

uigrad

New Member

hi ...

you may use something like this:

....

Thank you so much for responding! It worked great, this topic can be closed.

I had tried something like that, but I had used "top.frames[ ]" instead of "window.frames[ ]", based on something from a different site.

Aug 1 '07 #3

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5,390

Recognized Expert Moderator Expert

hi ...

glad to hear that you got it working ... post back to the forum whenever you have a question ;)

kind regards

Aug 2 '07 #4

Amuthaangler

New Member

Hi all,

I am facing a similar problem.I am uploading an image and I get the response from the server in an IFrame in JSON format. Is there any way to parse the response and get the image id which is the response from the server.

Any help would be greatly appreciated

With thanks,
Amutha

Aug 2 '07 #5

gits

5,390

Recognized Expert Moderator Expert

Hi all,

I am facing a similar problem.I am uploading an image and I get the response from the server in an IFrame in JSON format. Is there any way to parse the response and get the image id which is the response from the server.

Any help would be greatly appreciated

With thanks,
Amutha

in case you have json then simply eval the responseText and you get a native js-array/object that is easy to handle ... like every array/object ... where is your problem in particular?

kind regards

Aug 2 '07 #6

Amuthaangler

New Member

Hi gitz,

Thanks for your immediate response.

Let me explain you my current requirement. I am using IFrame for Uploading PIcture. My form's target points to IFrame. Now when I upload the picture, myserver side ROR script handles the same and posts the JSON response in the IFrame.The JSON response contains the uploaded Image Id, type and the Image name. I am able to view this when I make the IFrame as visible.

Any suggestions to access the Image Id from the response?

With thanks,
Amutha

Aug 2 '07 #7

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5,390

Recognized Expert Moderator Expert

you mean ... the json-response is written to the iframe's source-document? so you may retrieve that text like it is showed in the above example ... assign it to a js-variable:

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 var response = // json-string ;)
 
var upload_response = eval(response);
 
// now you may get the values of obj-properties

// may be the json-data was: {a: 'value1', b: 'value2', id: 'value3'}

var img_id = upload_response.id;

kind regards

Aug 2 '07 #8

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Accessing contents inside an iframe

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