Rendered Property for my Button not working correctly

Question

Hi Guys,
I Have a Table which bound to my ObjectListDataProvider
Each row will have button as follow
1.Edit ( rendered = 'isRendered" ) ( action = "edit_action()" )
2.Update ( rendered = "not isRendered") ( Action = "update_action()")
3.Cancel ( rendered = "not isRendered()") (Action = "cancel_action()")
The idea is when user first load the page what they can only see is Edit Button
Then when they start Click the Edit Button for particularr row it will
invoke the edit_action() method and set some Setting which cause the isRendered() value changed so
The Edit Button now wont be rendered but Update and Cancel Button will be rendered.
But when i click on Update Button nothing happens.
it seems rendering Component at runtime doesn't work
But i use visible propert instead of rendered it works perfectly.
Anybody encounter this issue before?
Thanks

Answer 1

yes when i clicked Edit Button these few thins will happen as below.
1. edit_action() invoked because i print something inside this method for tracing so i know this is invoked
2. then Edit Button would disappear( not rendered anymore) , as In turn ,
Update and Cancel Button would be rendered.
yea i use same value
all i did just go to properties windows bind the rendered value to "isRendered()" method
Because it doesn't work i clear the value , now i set the Visible value to "isRendered()" method for Update and Edit
But i never changed the action binding
so i guess its okay
Yea it is very weird and i dont know what cause this
the problem is when we can see Update Button means it is already being rendered right so it should invoke the binding method behind when i start clicking it but it just doesn't work for rendered...