Changing text box from editable to non-editable ONLY for certain records
Does anyone know whether it is possible to change the behavior of an item in a layout (e.g. a textbox) depending on the record being viewed? Specifically, I want the textboxes in my layout to change from being editable to being non-editable in browse mode after I decide that the work on that record is done – perhaps through pressing a button, or through choosing a specific option in a drop down menu. I am 90% sure this is impossible, but I wanted to check!