Add Listener for Render Event inside grid editor along with Text field

Hi Team,
There is requirement of column merge in dynamic grid and inline editing, can you please provide the example link to add render event for text field dynamically .
Attachment 25070
so while render i have added logic to show actual and plan value respectivly but on edit its showing exact value of column
Attachment 25071
but here also want to add render from code behind but not able to add any listner

It's dynamic grid.