Deactivating order by on a form.

Dear Sir /Madame,

I want to deactivate the order by on form fields (when you press right click
on a field you get sort ascending , descending options) because it creates
enormous amount of locks on the sql database. There is no property
"orderbyon" on the properties screen. I also tried to set in the open form
event Me.OrderByOn = false but it did not make any difference I could still
sort ascending or descending on any field I wanted. How can I achieve that ?

Thank you in advance for your help.

P. Scaram