How can I trigger a server-side event from a client-side event?

Question

Short version

All I need is that, in a ModalPopUp, when the DoubleClick event of a ListItem fires, the click event of my OK button should be executed.

Detail

I have a ModalPopUpExtender, which hosts a user control. The user control has an OK and a Cancel button. Along with that, it has a dynamic ListBox added to it. So far, I've considered the following possible solutions:

1. Use Ajax.Net. But, I cannot afford to have a WebMethod.
2. Use a ClientScriptCallBack. This will need a lot of JavaScript, since I have made almost every control dynamic.

Is there any other way apart from using an UpdatePanel?

Answer 1

Have a look at this way using __doPostback

http://stackoverflow.com/questions/905387/calling-a-vb-net-function-from-javascript/905404#905404

Answer 2

try calling a server side webmethod using JSON. Tutorials / Examples should be fairly easy to find