Retrieve values from a. ASP.NET form located inside an iFrame

Sojan80 · May 1st, 2009, 07:34 AM

I have a site that uses Masterpages. Inside one of the content pages is an iFrame which displays another page and then below the iframe in the content page is a submit button. All pages involved are .aspx pages. I need to check and see if the page inside that iFrame has controls like radiobuttons and checkboxes, and if it does retrieve those values and write them to a cookie so they can be processed, otherwise process as normal.

I have the normal process (if the page in the iframe doesn't have form fields) working. Where I'm falling down is working with the stuff inside an iframe.

How do I go about determining if the page int he iframe has form controls and how do I go about getting their values so I can write them to a cookie for processing once the submit button is clicked

joefawcett · May 1st, 2009, 07:48 AM

You should be able to check if the iframe's document has a form:

Code:

var doc = window.frames["innerFrame"].contentWindow.document; //or code you have now to get this far
var innerForm = document.forms[0];
if (innerForm)
{
  //read innerForm.elements and add to cookie
  //or create hidden elements on main page to store values 
}

Sojan80 · May 1st, 2009, 04:27 PM

Nice one! Works a treat! Thank you very much!