I am not sure I understand the entire concept, but here are some pointers on what I can gather:
. Note how you can show it with a new message from the server without actually updating it as a part of the partial postback
- if you need to have a RadWindow show up (and preserve the scroll position), collect data and notify the user on success I suggest the following:
= examine this article on the ways to open a RadWindow: http://www.telerik.com/help/aspnet-ajax/window-programming-opening.html
= if the data collection form is simple, you can use the ContentTemplate of the dialog, because it will still be a part of the main page and you can use the notification to notify the user if you like.The difference between the two modes is explained here: http://demos.telerik.com/aspnet-ajax/window/examples/contenttemplatevsnavigateurl/defaultcs.aspx
= you may also find useful this article on using AJAX with RadWindow: http://www.telerik.com/help/aspnet-ajax/radwindow-ajaxifying.html
Let me know if you have further questions on the matter after examining these resources.
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