How to make mainform view only while allowing to edit on subform

[Blue6688]

May be this is easy for your guys. I want to freeze or lock the mainform data fields while allowing users to input, edit, delete data on a subform. I tried to change mainform properties so it can not edit, add or delete data on mainform. By doing so, I cannot do anything with subform, it seem read only as well.

Thank you for help

Peter

 

[MarkK]

Set the Locked property of the main form controls.