See if you can have a dummy column as read only column and hide the original column and just pass the value of the original column to this dummy one.
If you use original column as read only then it will not pass the value. But we can have a dummy column just to display the value as read only.
Thanks for reply.
i have created a dummy column and passed the value of the orginal column values to dummy cloumn. and hided the orginal column.
in this process i have come across same issue. it is not passing the value as parameter and instead of updating the row it is inserting an new row.
Any alternate for this scenario.
Thanks in advance.