I have been searching these forums, but also the web at large. Can you tell me if WebParts for Webform applications are obsolete? Or, can you tell me if they are only designed to work with IE specifically? I really want to integrate the webparts functoinality but it needs to work across browsers. (this is not a sharepoint webpart)
Thanks.
As far as I can tell, they are not obsolete as they are supported in .Net 4.0 framework but you are right in that the rely on IE. Personally, if you require cross-browser support I would not be considering this functionality. If you need drag/drop features, date pickers etc, I would consider something like jQuery UI and individual libraries for rich, feed-based components e.g. Twitterizer.
Alternatively, there are paid solutions available like Telerik's Kendo UI which perform many similar and additional functions and are probably much better.