Hi Adam,
Could you confirm whether you need to embed data in an aspx page renderd in a browser, or are you generating a report? For the latter, perhaps the Telerik Reporting will be a more suitable tool rather than tampering with the rendered HTML from ASPX pages.
On the question whether an ASP.NET AJAX script control can render without a page, then be added somewhere (not to mention - continue functioning there) - this is not possible, nor will it be. IScriptControls require the server lifecycle of the webform page and a Scriptmanager to register their resources, then the MS AJAX client-side scripts to generate their $create() statements and instantiate their client-side objects, so they can work. This cannot happen without a page.
If you are looking for widgets that you can easily create dynamically - perhaps the JavaScript Kendo UI framework will be of interest, because it only needs its scripts in the browser, from this point on you can create HTML elements and instantiate widgets over them without going to the server.
Regards,
Marin Bratanov
Telerik
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