How do I force a PostBack from my JavaScript?
This thread describes in detail how to perform a PostBack from your JavaScript, similar to the way ReorderList does it. 2.8 Manipulate extender on the client [top] Extender also has an object model on client side. We are able to call method on the object that represents it to get desired behavior, for example, we can call show method to make a modalPopupExtender visible. The key is we need to get a reference to this object. AJAX library has already provided a $find function to achieve this. First, we need to assign a BehaviorID to the extender that we wish to manipulate on server side. Then, on client side, we can get it with $find(“behaviorid”). After that, we can call any method on the object to achieve our requirement.
