0

The row is not protected at all. The user can access the cells and modify their value. This is the default setting.

1

The row is read-only. The user can move into any of the cells in the row, but cannot change their contents.

2

The row is protected. Any access to the cells in that row is denied. If the user tries to move into a protected row with the keyboard, it is skipped and the cursor goes to the next valid row. If a protected row is clicked, no action occurs.