Can spark datagrid mouse click be disabled while in a custom item editor?

Question

Hi,
Is it possible to prevent a user from clicking on another cell in a datagrid until the cell currently being edited has had its data saved? 
I would like to validate the cell's text data as it is being entered by a user, character by character.  If the validation fails, I would like to put up an error message and prevent the user from clicking outside of the cell.  I am able to validate the data and put up an error message.  But I have not found a way, if there is one, of disabling mouse clicks in other cells.  I've tried setting the IE's parent.editable, .enabled and .mouseEnabled properties to false.  But none of these are working for me.
Thanks,
-Adobegillisisle2

Answer 1

The session does stay if I hit the TAB or RETURN keys.  I return false from my overridden save() function and the session stays keeping the user in the edit cell, allowing fixing the invalid data.   But I don't get the same behavior when I click the mouse on another cell.  In these cases, my save function is still called, and I still return false ( in the case where the validation fails ), but the edit session goes away.