void HTML_QuickForm_Page::setDefaultAction (
string $actionName
)
This is necessary as the user may just press Enter instead of clicking one of the named submit buttons and then no action name will be passed to the script.
This method adds a special hidden element to the form the contents of which will be used by Controller if no action name is found in the submitted values.
$actionName
default action name
throws no exceptions thrown
This function can not be called statically.