Hi Leon,
The problem is, the value which I enter in the screen is got in the set method and it sets the value to the current. but when it comes to do_prepare_output the value is not there... So, I guess it reaches the genil but cleared some where between the set and do_prepare.
To be more clear. I have created a table view and when the order is open for the first time, there will not be any relation and to create an entry in this table we have a insert button. The relation is created when the insert is clicked and I get the empty row to enter the value. when I enter the value and do any action, the value and the empty row disappears.
Thanks in advance,
Ashok.