ExtraParameters use from listeners

[ISkomorokh]

Coolite version 0.7.0

I need to implement next:

class SomeClass: Obsorvable

[AjaxMethod]
public object Save(AjaxEventArgs e) {
  ... work width data from e.ExtraParameters ...

  return some result obj;
}

Then I need to call

SomeClass.Save({someData})

from Button listener click handler.

Is it possible to implement something like this?
Can you please explane how?

Thank you!