grey out rows in table

Dear all

I am using a Table in my webdynpro layout as input cells.the application is running fine .

when user logs in again , it should display the previous entries made in the table.

I know how to put those values in table but the table rows (which contain data ) are not greyed out .

My concern is how to grey out those rows which already have data so that user cannot alter that but at the same time user should be allowed to enter new entries.

number of entries are bot restricted.

Regards

Vaibhav