Accessing Invisible Columns of GridView Control

When you display data in a GridView you should always be very careful not to show the primary key of the table in GridView. In Datagrid we made these columns invisible and hence the client was not able to see them. Unfortunately all invisible columns of the Datagrid were stored in the ViewState and hence opened a huge security hole. GridView does not allow client to see the invisible columns and does not store them in the ViewState object. In this article we will see that how we can access the invisible columns of the GridView control ...