ASP.net AJAX Drag/Drop?

I wonder if someone knows if there is a pre-made solution for this: I have a List on an ASP.net Website, and I want that the User is able to re-sort the list through Drag and Drop. Additionally, I would love to have a second list to which the user can drag items from the first list onto.

How do I refresh an ASP.NET ListView using jQuery and AJAX?

I have a page with a number of ListViews that I want users to be able to sort and page through. Rather than postback and rebind the entire page each time, I would like to do it via jQuery/AJAX selectively for the control in question. I am comfortable making the client-side call to a WebMethod in my page – my question is how do I get the returned data back into the ListView via jQuery?

Update Panel error: Control with the ID “xxx” could not be found in the UpdatePanel

I have a composite drop down calendar user control that consists of a textbox and and calendar image and a validation control. I expose a property called “TextBox” on the usercontrol which returns a reference to the textbox used within the control. This is the textbox that the user enters the date into.

AJAX Comet – Is there any solution Microsoft is working on or supports to allow it to be scalable?

I notice a lot of questions and articles talking about ajax comet. I also found some links to make it “scalable” since some of those posts talk about how it isn’t that scalable with ASP.Net. I’m wondering if Microsoft has a solution they’re working on or that is out that addresses an AJAX Comet solution for ASP.Net that is free.