I have an ASP.NET app with an IFRAME embedded in the main page. I display different content within the IFRAME. How can I programmatically access the page object currently loaded in the IFRAME from the main page?

You can't. Each page hit (I.e. main window, iframe window) is completely independent. You can't interact with them with .Net. When you make load the main ASPX, it loads executes then spits out HTML to the browser. That page execution has lived and died. Now, there is HTML that tells the browser to go get another page (inside the iframe just like images or other URL based resources). This page request comes to your server which serves of another page. This page executes on it's own just like the first one, separate and apart from it.

So, in native .Net you can't get the two to talk. What you can do with JavaScript on the client however is up to you.

If you wanted to update data in the iframe with some data that has been affected with another frame of the page (two iframes, regular frames, etc) you could write out JS that causes the other pages to refresh or post so they'd refresh from their source data or whatever source has been changed.

Peter

Bummer. Kinda what I figured. Guess I'll get rid of the IFRAME and duplicate my navigation bars and other things on all forms.

Well hold the phone there! Are you trying to avoid control duplication? You need to look into UserControls.

Peter