Protected cells can not be modified

[ugurkara]

Normally we receive the message "protected cells can not be modified" , when trying to enter value to protected cells.
Is there any way to prevent show the msgbox?

[RoryOF]

Perhaps I am being obtuse, but it seems to me to be counter productive to protect cells that must be altered. Information on unprotecting selected cells is at
http://wiki.services.openoffice.org/wik ... adsheet%3F

[ugurkara]

Dear rory,
my aim is to prevent the user edit the cells. sure, we can use protection . But i don't want any message box.
Mightbe i need to prevent the user select any cell before editing. I'm not sure. I can't find any hint all forum about it.
how to disable selection any cell or editing cell without messagebox?