I had created a custom field on one of the objects and its type is selected as currency. In the field level security i had made is as ready only for all the profiles. When i create a opportunity for which this field is created i see the label visible but not the input field box when i go into the display mode after creation i see the label and the input field box. how do i stop the label from display in create or edit mode just like the formula field?
If you are a system admin, check your profile settings. If "EditReadonlyfileds" checkbox is checked on settings, it allows you to edit all read only fields. You can login as actual user and test it.