I want to display the GUID of a ListItem in a column of a List. I have created a list with some fields, including a custom field to display the guid of each listitem, this field is not editable. When you create a new listitem, this field appears at the bottom of the page. When I press the ok button to confirm, you access in mode for display columns and the 'GUID Value' should be appear, but only when I go to edit the listitem the GUID Value appears. Why? Could someone help me?
My customField extends the BaseFieldControl class: which method or property I can override to display the GUID value both in edit and in view mode?