caption_field
This property specifies the name of the field in the working list specified in the listname property that will override the tab caption for each tab item. This property is ignored if the listname property is not specified, but in any event is optional. Refer to the description of the listname property for further information.
Default value
Blank – the tab caption is not overridden at run-time via the working list specified in the listname property.
Valid values
The name of a field in the working list specified in the listname property that will contain the tab caption for each tab item. You can choose from a list of available fields by clicking the corresponding dropdown button in the property sheet.