If you are using Ajax.BeginForm() with multiple submit buttons similar to this:
// View.aspx
<% using (Ajax.BeginForm(\"Action\", \"Controller\",
I did the following:
i.e. defined a hidden input type with id of "btnSubmit" and on each button added the onclick event as onclick="$('#btnSubmit').attr('value','Delete');". this seems to work as I was able to get the value of the button clicked in the controller:
public ActionResult SaveCreateBlot(string btnSubmit) {
}